pitchfx catalog

Archived Posts from this Category

July 2, 2008

Updated catalog is available

Posted by Mike Fast under pitchfx catalog
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Finally! The new PITCHf/x article archive, now powered by a back-end database thanks to Bryan Donovan, is available at the Hardball Times.

You can read all about it here.

May 30, 2008

Status of the catalog

Posted by Mike Fast under pitchfx catalog, Uncategorized
[10] Comments

Last year I diligently kept a catalog of articles written about topics related to PITCHf/x or using PITCHf/x data. Some of you have noticed that I have been negligent in updating that catalog this year. My last full update was January 15, and I did a partial update on March 1.

A new update is now in progress behind the scenes. Since the article list now exceeds six hundred articles, I’m working toward a database solution to better track them all. Hopefully, I’ll be able to unveil something within the next few weeks. In the mean time, Harry, if you would quit writing more than an article per day, that would help a lot. I should just rename my catalog the Cubs f/x Index. 😉

September 1, 2007

Enhanced Gameday analysis cataloged by pitcher

Posted by Mike Fast under gameday, pitchfx catalog
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The updated version of this catalog is now hosted by The Hardball Times.

In the spirit of better organization, here is the Enhanced Gameday analysis catalog organized by pitcher for those articles written about a particular pitcher.

You can also see the full list of articles by date, and articles by author.

Bronson Arroyo

On September 17, Harry Pavlidis published “Arroyo Clusters“, an article classifying pitch types for Bronson Arroyo.
On September 19, Justin inAZ published “PITCHf/x Plots for Harang and Arroyo“, an article discussing pitch classification plots for pitchers Aaron Harang and Bronson Arroyo.

Jose Ascanio

On December 6, Harry Pavlidis published “Jose Ascanio“, an article characterizing pitches for Jose Ascanio.

Homer Bailey

On September 24, Justin inAZ published “Could Jared Burton Be Another Mariano Rivera?“, an article with pitch classification plots from fellow author John Walsh for pitchers Homer Bailey, David Weathers, Jared Burton, Bill Bray, Todd Coffey, and Gary Majewski.
On October 12, Doug Gray published “Breaking Down Homer Bailey Part 1“, an article looking at Homer Bailey’s curveball.
On October 13, Doug Gray published “Breaking Down Homer Bailey Part 2“, an article looking at Homer Bailey’s fastball.
On October 14, Doug Gray published “Breaking Down Homer Bailey Part 3“, an article looking at Homer Bailey’s changeup.

Dan Barone

On September 25, Harry Pavlidis published “Up Next: Dan Barone“, an article about pitch Dan Barone, examining his pitch types using spin rate graphs.

Josh Beckett

On June 14, Joe P. Sheehan published “Ch-ch-ch-ch-changes…”, on the effectiveness of the changeup and pitchers Cole Hamels, Josh Beckett, Trevor Hoffman, and Johan Santana.
On June 26, a Chinese-language article was published about pitcher Josh Beckett: http://blog.xuite.net/stfo/blog/12293879
On September 16, Whither published “Gameday Pearl Radar” (Google translation of the title, sorry!), a Chinese-language article about pitch classification for Andy Pettitte, Daisuke Matsuzaka, Chien-Ming Wang, Josh Beckett, Roger Clemens, and Curt Schilling. The graphs are in English, so you might get something out of the article even if you can’t read Chinese.
On October 4, Eric Van and Alan Nathan posted a breakdown of Josh Beckett’s October 3rd playoff start to the Sons of Sam Horn message board. See posts #64, #92, and #93.
On October 12, Joe P. Sheehan published “Beckett vs. Sabathia“, an article classifying pitches and examining pitching strategies for Josh Beckett and C.C. Sabathia.
On October 19, Joe P. Sheehan published “Pitch Sequencing“, an article examining pitch sequences for Josh Beckett, C.C. Sabathia, and Greg Maddux.
On October 19, Jonathan Hale published “Beckett’s Gem Keeps Boston Alive“, an article about Josh Beckett’s American League Championship Series Game 5 start.
On October 24, SoxScout posted a pitch characterization for Josh Beckett’s World Series Game 1 start to the Sons of San Horn message board. See post #18.
On November 6, I published “Bend It like Beckett“, an article classifying pitches for Josh Beckett.
On November 12, I published “Meanwhile, Beckett the Ranch…“, an article with strike zone charts by pitch type for Josh Beckett.

Erik Bedard

On January 3, 2008, I published “Tales of the Curve: An Analysis of Erik Bedard“, an article classifying pitches for Erik Bedard and showing his pitch mix and strike zone charts by pitch type and batter handedness.

Matt Belisle

On September 14, Josh Kalk published “Reds @ Brewers Pitching Preview“, an article applying his pitch classification algorithm to Tom Shearn, Kirk Saarloos, Matt Belisle, Ben Sheets, Jeff Suppan, and Carlos Villanueva.

Joaquin Benoit

On August 16, Steve West published “Passing Out POTY Ballots”, an article about choosing the Rangers’ best pitcher of 2007, and also classifying pitches for Joaquin Benoit and C.J. Wilson.

Jeremy Bonderman

On April 14, Bill Ferris published “A Different Look at the Bonderman-Halladay Duel”, an article about Jeremy Bonderman’s April 13th start.

Chad Bradford

On August 23, Dan Fox published “Visualizing Pitches”, an article looking at pitch trajectories in three dimensions.
On September 14, I published “In the Land of Submariners“, an article classifying pitch types for Chad Bradford.

Bill Bray

On September 24, Justin inAZ published “Could Jared Burton Be Another Mariano Rivera?“, an article with pitch classification plots from fellow author John Walsh for pitchers Homer Bailey, David Weathers, Jared Burton, Bill Bray, Todd Coffey, and Gary Majewski.

Clay Buchholz

On July 26, Joe P. Sheehan published a collection of PITCHf/x-related notes under the title “Not an Article about Pitching at Altitude”. He discusses preliminary data about the effect of altitude on the break of pitches, and updates his BABIP charts from “Location, Location, Location”.

Mark Buehrle

On April 25, Anthony posted “Mark Buehrle’s No Hitter”, looking at the pitch location and umpire strike zone for the game from April 18th.

A.J. Burnett

On June 26, Louis Chao published, in Chinese, “Diggin’ in on the Sinker”, an article looking at sinkerball pitchers.
On July 12, Louis Chao published “Another Look at the Sinker”, an article comparing the two-seam and four-seam fastballs and looking at pitcher A.J. Burnett.
On September 14, Jonathan Hale published “A.J. Burnett Pitch Analysis–Then and Now“, an article about pitcher A.J. Burnett.

Jared Burton

On September 24, Justin inAZ published “Could Jared Burton Be Another Mariano Rivera?“, an article with pitch classification plots from fellow author John Walsh for pitchers Homer Bailey, David Weathers, Jared Burton, Bill Bray, Todd Coffey, and Gary Majewski.
On December 14, Joe P. Sheehan published “The Same Things“, an article about calculating similarity scores for pitches from different pitchers and a look at pitcher Jared Burton.

Paul Byrd

On October 17, Jonathan Hale published “Game 4 ALCS–Pitch f/x Analysis of Wakefield vs. Byrd“, an article about the ALCS Game 4 starts by Tim Wakefield and Paul Byrd.

Chris Capuano

On September 12, Josh Kalk published “More Fun with PITCHf/x“, an article applying his pitch classification algorithm to Yovani Gallardo, Francisco Cordero, Chris Capuano, and Brian Shouse.

Fausto Carmona

On October 5, Dan Fox published “Carmona’s Trend“, an article looking at Fausto Carmona’s pitch mix.
On October 21, Jonathan Hale published “Carmona Got Squeezed“, an article about the called strike zone for Fausto Carmona’s October 20th ALCS start.

Joba Chamberlain

On August 14, I published “What Does Joba Throw?”, an article classifying Joba Chamberlain’s pitches in his August 10th appearance.
On November 15, I published “Appeasement“, an article classifying pitches for Joba Chamberlain.
On November 18, I published “Swinging at Shoe Tops?“, an article with strike zone charts by pitch type for Joba Chamberlain and examining a PITCHf/x data error.
On January 15, 2008, SG of RLYW published “Pitch F/X and Joba Chamberlain“, an article looking at the results of Joba Chamberlain’s pitches by pitch type.

Roger Clemens

On September 16, Whither published “Gameday Pearl Radar” (Google translation of the title, sorry!), a Chinese-language article about pitch classification for Andy Pettitte, Daisuke Matsuzaka, Chien-Ming Wang, Josh Beckett, Roger Clemens, and Curt Schilling. The graphs are in English, so you might get something out of the article even if you can’t read Chinese.

Todd Coffey

On September 24, Justin inAZ published “Could Jared Burton Be Another Mariano Rivera?“, an article with pitch classification plots from fellow author John Walsh for pitchers Homer Bailey, David Weathers, Jared Burton, Bill Bray, Todd Coffey, and Gary Majewski.

Jose Contreras

On September 13, Josh Kalk published “Progress. Errrr, Sort of.“, an article updating the results from his pitch classification algorithm.

Aaron Cook

On April 26, Joe P. Sheehan published “That Sinking Feeling”, an article about the two-seam fastball, examining pitchers Derek Lowe, Aaron Cook, Brandon Webb, and Carlos Silva.

Francisco Cordero

On September 12, Josh Kalk published “More Fun with PITCHf/x“, an article applying his pitch classification algorithm to Yovani Gallardo, Francisco Cordero, Chris Capuano, and Brian Shouse.

Manny Corpas

On October 4, Josh Kalk published “Was Manny Corpas Doctoring the Ball?“, an article about the October 3rd Divison Series relief appearance by Manny Corpas.

John Danks

On August 30, Steve West published “Danks but No Danks”, an article looking at pitcher John Danks and classifying his pitches.

Doug Davis

On October 4, Harry Pavlidis published “Cubs v Davis“, an article classifying pitch types for Doug Davis.

Zack Duke

On December 30, Jake at BuccoBlog published “PITCHf/x, Beaver’s Culture, and Only 2 Days Left“, an article showing the pitch results for fastballs thrown by Pat Maholm, Ian Snell, Tom Gorzelanny, Matt Morris, and Zack Duke.

Adam Eaton

On December 3, Tom Goyne published “Breaking Down Adam Eaton’s Breaking Ball“, an article looking at the break on Adam Eaton’s curve.
On December 21, Tom Goyne published “Breaking Down Adam Eaton’s Breaking Ball, Part II“, updating his previous article on the break of Adam Eaton’s curve.

Josh Fogg

On October 27, Eric Van posted a pitch type breakdown of Josh Fogg to the Sons of San Horn message board. See post #32.

Jeff Francis

On October 4, Josh Kalk published “A Closer Look at Jeff Francis’ Start Against the Phillies“, an article about Jeff Francis’ October 3rd playoff start.
On October 24, Eric Van posted a pitch type breakdown of Jeff Francis to the Sons of San Horn message board. See posts #14 and #17.
On October 25, Jonathan Hale published “Jeff Francis off to a Rocky Start in the World Series“, an article about the postseason performance of Jeff Francis.

Eric Gagne

On October 2, I published “Going, Going, Gagne!“, an article classifying pitch types for Eric Gagne.
On October 3, I published “Gagne Fishing“, an article with strike zone charts by pitch type for Eric Gagne.

Yovani Gallardo

On September 12, Josh Kalk published “More Fun with PITCHf/x“, an article applying his pitch classification algorithm to Yovani Gallardo, Francisco Cordero, Chris Capuano, and Brian Shouse.

Tom Glavine

On November 20, Josh Kalk published “Anatomy of a Player: Tom Glavine“, an article classifying Tom Glavine’s pitches and charting the strike zone location of his fastballs.

Tom Gorzelanny

On September 22, Harry Pavlidis published “Local Kid, Probably a Sox Fan“, an article looking at pitch types for Tom Gorzelanny.
On December 30, Jake at BuccoBlog published “PITCHf/x, Beaver’s Culture, and Only 2 Days Left“, an article showing the pitch results for fastballs thrown by Pat Maholm, Ian Snell, Tom Gorzelanny, Matt Morris, and Zack Duke.

Zack Greinke

On September 17, I published “Simple Is Good“, an article classifying Zack Greinke’s pitch types and comparing his performance as a reliever and as a starter.

Roy Halladay

On June 28, Joe P. Sheehan published “Is There Something in the Way It Moves?”, on pitcher Roy Halladay and the consistency of his stuff from start to start.
On August 10, Joe P. Sheehan published “Makin’ a Filter”, an article about an automated method for classifying all pitches into either fastball or off-speed and drawing some conclusions from the data about when each type of pitch is thrown.
On August 23, Dan Fox published “Visualizing Pitches”, an article looking at pitch trajectories in three dimensions.
On October 13, Jonathan Hale published “Pitching Forensics–The Doctor Is In“, an article examining characteristics of Roy Halladay’s rough patch in the first half of the season.

Cole Hamels

On June 14, Joe P. Sheehan published “Ch-ch-ch-ch-changes…”, on the effectiveness of the changeup and pitchers Cole Hamels, Josh Beckett, Trevor Hoffman, and Johan Santana.

Aaron Harang

On September 19, Justin inAZ published “PITCHf/x Plots for Harang and Arroyo“, an article discussing pitch classification plots for pitchers Aaron Harang and Bronson Arroyo.

Dan Haren

On July 13, Joe P. Sheehan published “Under Pressure”, on pitchers Jake Peavy and Dan Haren and their pitch selection in high-pressure versus low-pressure situations.
On July 30, Steve West published “Do Pitchers Affect the Strike Zone”, a look at batted ball results plotted against pitch location in the strike zone.

Felix Hernandez

On April 18, Joe P. Sheehan published “Another Look at Enhanced Gameday”, an article about pitch selection, velocity, and classifying pitches for Felix Hernandez and Kevin Millwood.
On June 14, Dan Fox published “The Science and Art of Building a Better Pitcher Profile”, about pitcher Felix Hernandez and methods for classifying his pitches.
On June 28, the following article was published in the Chinese language about Felix Hernandez: http://badassbaseball.blogspot.com/2007/06/enhance-gameday-4-seamerfelix.html

Livan Hernandez

On October 6, Harry Pavlidis published “Livan’s Bag-o-Tricks“, an article classifying pitch types for Livan Hernandez.
On October 15, Jonathan Hale published “Conclusion: Livan Hernandez WAS Screwed“, an article about the called strike zone for the NLCS Game 3 start by Livan Hernandez.

Rich Hill

On May 25, Joe P. Sheehan published “Dangerous Curves”, on the break of the curveball and pitchers Barry Zito and Rich Hill.
On August 17, Joe P. Sheehan published “May I Have Seconds”, an article about calculating pitched ball trajectories.
On August 22, Harry Pavlidis published “Rich Hill’s Four Pitches”, an article classifying, not surprisingly, Rich Hill’s pitches.
On August 23, Harry Pavlidis published “Rich Hill – Numbers”, an article looking at the results of those pitches.
On August 23, Dan Fox published “Visualizing Pitches”, an article looking at pitch trajectories in three dimensions.
On September 2, Harry Pavlidis published “Other Side of Hill”, an article showing Rich Hill’s pitch location versus pitch type.
On September 2, Harry Pavlidis published “Fooled by Hill”, an article about strike zone calls on Rich Hill’s various pitch types.
On September 2, Harry Pavlidis published “Hill ≠ Marshall “, an article comparing pitchers Rich Hill and Sean Marshall.
On September 16, Harry Pavlidis published “Clusters“, an article about using k-means cluster analysis to classify pitch types.
On October 6, Harry Pavlidis published “Hill’s Curve and the Weather“, an article examining the effect of weather conditions on the break of Rich Hill’s curveball.

Trevor Hoffman

On June 14, Joe P. Sheehan published “Ch-ch-ch-ch-changes…”, on the effectiveness of the changeup and pitchers Cole Hamels, Josh Beckett, Trevor Hoffman, and Johan Santana.

Tim Hudson

On July 2, THT published “A Close Look at Tim Hudson”, an article about pitcher Tim Hudson and classifying his pitches using a statistical clustering function.

Phil Hughes

On May 10, Dan Fox’s article “Phil Hughes, Pitch by Pitch” discussed Hughes’ May 1st start in detail, including release point and fastball velocity throughout the game.

Ubaldo Jimenez

On August 25, Dan Fox published “Jimenez Delivers”, an article about Ubaldo Jimenez’s August 25th start.
On October 7, Dan Fox published “Rocktober Rocks On!“, an article containing game notes from the Colorado-Philadelphia Division Series Game 3, including comments about pitches from Ubaldo Jimenez.
On October 25, Eric Van posted a pitch type breakdown of Ubaldo Jimenez to the Sons of San Horn message board. See post #25.
On October 26, Dan Fox published “Game Two Notes“, including a section on the consistency of Ubaldo Jimenez’s release point.

Jair Jurrjens

On September 15, the Jair Jurrjens blog published “Jair Jurrjens 9/11 Start versus Texas“, an article examining his pitch breakdown and results from that start.
On September 17, the Jair Jurrjens blog published “Jair Jurrjens 9/16 Start against the Twins“, an article examining his pitch breakdown and results from that start.

Scott Kazmir

On June 3, ultxmxpx posted “Shields/Kazmir pitch selection” as a topic on the RaysBaseball forum.

Hong-Chih Kuo

On June 13, Whither published an article about pitcher Hong-Chih Kuo: http://blog.roodo.com/Whither/archives/3458611.html
On July 3, a Chinese-language article was published about Hong-Chih Kuo: http://badassbaseball.blogspot.com/2007/07/enhanced-gameday-4-seamerslider.html

John Lackey

On April 19, Joe P. Sheehan published “More Fun with Enhanced Gameday”, an article about consistency of pitch movement, location, and release points, and classifying pitches for John Lackey.

Jon Lester

On August 8, Dr. Alan Nathan published “Analysis of PITCHf/x Pitched Baseball Trajectories” (PDF), a paper looking at Jon Lester’s start on August 3rd and classifying his pitches according to speed, spin magnitude, and spin direction.
On October 28, SoxScout posted a pitch characterization for Jon Lester’s World Series Game 4 start to the Sons of San Horn message board. See post #35.
On October 30, Eric Van posted a pitch selection comparison for Jon Lester between his World Series Game 4 start and his ALCS relief appearance to the Sons of San Horn message board. See post #36.

Ted Lilly

On September 16, Harry Pavlidis published “Ted Lilly Clusters“, an article applying k-means cluster analysis to classify pitch types for Ted Lilly.

Tim Lincecum

On December 4, Josh Kalk published “Anatomy of a Player: Tim Lincecum“, an article classifying Tim Lincecum’s pitches and charting the strike zone location of his changeups.

Jesse Litsch

On September 20, Jonathan Hale published “Jesse Litsch Is 22 Years Old“, an article looking at pitch types for three of Jesse Litsch’s starts.
On September 25, Jonathan Hale published “Jesse Litsch–What Went Right?“, an article about Jesse Litsch’s September 25th start.

Esteban Loaiza

On September 4, Harry Pavlidis published “Dodgers v Cubs”, an article about pitch types thrown by the Dodgers’ rotation: Brad Penny, Derek Lowe, Esteban Loaiza, Eric Stults.

Kameron Loe

On June 18, Steve West published “Rangers Rotation Pitch Types”, an article classifying the pitch types of Texas pitchers Kevin Millwood, Brandon McCarthy, Kameron Loe, Vicente Padilla, and Robinson Tejeda.
On July 12, Steve West published “Pitch Break Angle vs Length”, and article about classifying pitch types using these two new PITCHf/x parameters.
On June 25, Steve West published “Rangers Rotation Release Points Redux”, an article examining whether the Texas starters were tipping their pitches by varying release points.

Derek Lowe

On April 26, Joe P. Sheehan published “That Sinking Feeling”, an article about the two-seam fastball, examining pitchers Derek Lowe, Aaron Cook, Brandon Webb, and Carlos Silva.
On August 23, Dan Fox published “Visualizing Pitches”, an article looking at pitch trajectories in three dimensions.
On September 4, Harry Pavlidis published “Dodgers v Cubs”, an article about pitch types thrown by the Dodgers’ rotation: Brad Penny, Derek Lowe, Esteban Loaiza, Eric Stults.
On September 7, Joe P. Sheehan published “That Sinking Feeling: Part Deux”, an article examining the relationship between sinkers and ground balls.

Greg Maddux

On September 12, I published “Mad Dog Mishmash“, an article classifying pitch types for Greg Maddux.
On October 19, Joe P. Sheehan published “Pitch Sequencing“, an article examining pitch sequences for Josh Beckett, C.C. Sabathia, and Greg Maddux.

Pat Maholm

On December 30, Jake at BuccoBlog published “PITCHf/x, Beaver’s Culture, and Only 2 Days Left“, an article showing the pitch results for fastballs thrown by Pat Maholm, Ian Snell, Tom Gorzelanny, Matt Morris, and Zack Duke.

Gary Majewski

On September 24, Justin inAZ published “Could Jared Burton Be Another Mariano Rivera?“, an article with pitch classification plots from fellow author John Walsh for pitchers Homer Bailey, David Weathers, Jared Burton, Bill Bray, Todd Coffey, and Gary Majewski.

Mike Maroth

On April 29, in his “Game 24: Twins at Tigers” recap, Bill Ferris used Gameday to chart pitcher Mike Maroth’s release point.

Carlos Marmol

On September 2, Harry Pavlidis published “Marmol”, an article about pitcher Carlos Marmol.

Sean Marshall

On September 2, Harry Pavlidis published “Hill ≠ Marshall “, an article comparing pitchers Rich Hill and Sean Marshall.

Pedro Martinez

On September 22, mb22414 published “Checking in on Pedro“, an article about pitcher Pedro Martinez’s performance since returning from surgery.
On November 1, John Walsh published “Don’t Blame Pedro“, an article classifying pitches and examining pitching strategies for Pedro Martinez.

Daisuke Matsuzaka

On July 5, Dan Fox published “Searching for the Gyroball”, an article about pitcher Daisuke Matsuzaka and classifying his pitches.
On August 23, Dan Fox published “Visualizing Pitches”, an article looking at pitch trajectories in three dimensions.
On September 16, Whither published “Gameday Pearl Radar” (Google translation of the title, sorry!), a Chinese-language article about pitch classification for Andy Pettitte, Daisuke Matsuzaka, Chien-Ming Wang, Josh Beckett, Roger Clemens, and Curt Schilling. The graphs are in English, so you might get something out of the article even if you can’t read Chinese.
On October 27, Dan Fox published “Sliders but no Gyro“, an article looking at Daisuke Matsuzaka’s pitch mix.
On October 27, SoxScout posted a pitch characterization for Daisuke Matsuzaka’s World Series Game 3 start to the Sons of San Horn message board. See post #34.

Brandon McCarthy

On June 18, Steve West published “Rangers Rotation Pitch Types”, an article classifying the pitch types of Texas pitchers Kevin Millwood, Brandon McCarthy, Kameron Loe, Vicente Padilla, and Robinson Tejeda.
On June 25, Steve West published “Rangers Rotation Release Points Redux”, an article examining whether the Texas starters were tipping their pitches by varying release points.
On July 12, Steve West published “Pitch Break Angle vs Length”, and article about classifying pitch types using these two new PITCHf/x parameters.
On August 3, Steve West published “More McCarthy”, an article about pitcher Brandon McCarthy, classifying his pitches.

Dustin McGowan

On September 29, Jonathan Hale published “Dustin McGowan–Dissection of a Masterpiece“, an article about Dustin McGowan’s May 28th and June 24th starts.

Andrew Miller

On June 3, Bill Ferris published “A Different Look at Andrew Miller”, an article about pitchers Andrew Miller and Kenny Rogers and classifying their pitches.

Kevin Millwood

On April 18, Joe P. Sheehan published “Another Look at Enhanced Gameday”, an article about pitch selection, velocity, and classifying pitches for Felix Hernandez and Kevin Millwood.
On June 18, Steve West published “Rangers Rotation Pitch Types”, an article classifying the pitch types of Texas pitchers Kevin Millwood, Brandon McCarthy, Kameron Loe, Vicente Padilla, and Robinson Tejeda.
On June 25, Steve West published “Rangers Rotation Release Points Redux”, an article examining whether the Texas starters were tipping their pitches by varying release points.
On July 12, Steve West published “Pitch Break Angle vs Length”, and article about classifying pitch types using these two new PITCHf/x parameters.

Franklin Morales

On July 26, Joe P. Sheehan published a collection of PITCHf/x-related notes under the title “Not an Article about Pitching at Altitude”. He discusses preliminary data about the effect of altitude on the break of pitches, and updates his BABIP charts from “Location, Location, Location”.

Matt Morris

On December 30, Jake at BuccoBlog published “PITCHf/x, Beaver’s Culture, and Only 2 Days Left“, an article showing the pitch results for fastballs thrown by Pat Maholm, Ian Snell, Tom Gorzelanny, Matt Morris, and Zack Duke.

Mike Mussina

On March 29, Joe P. Sheehan published “Enhanced Gameday”, an article about various pitchers from the 2006 playoffs, looking at pitch location, release points, and classifying pitches for Mike Mussina.

Joe Nathan

On July 14, Prof Pepper published “Cosi Si Vincono I Cy Young, Baby!“, an Italian-language article about pitchers Johan Santana and Joe Nathan.

Hideki Okajima

On October 25, SoxScout posted pitch characterizations for Curt Schilling’s World Series Game 2 start and Hideki Okajima’s relief appearance to the Sons of San Horn message board. See post #28.

Micah Owings

On August 24, Harry Pavlidis published “Micah Owings”, an article classifying the pitches of Micah Owings.

Vicente Padilla

On June 18, Steve West published “Rangers Rotation Pitch Types”, an article classifying the pitch types of Texas pitchers Kevin Millwood, Brandon McCarthy, Kameron Loe, Vicente Padilla, and Robinson Tejeda.
On June 25, Steve West published “Rangers Rotation Release Points Redux”, an article examining whether the Texas starters were tipping their pitches by varying release points.
On July 12, Steve West published “Pitch Break Angle vs Length”, and article about classifying pitch types using these two new PITCHf/x parameters.

Jonathan Papelbon

On September 7, I published “Magnus Papelbonus”, an article about pitcher Jonathan Papelbon and techniques for classifying pitches by spin direction.
On September 10, I published “Papelbon Redux“, an update to my previous article about Jonathan Papelbon with pitch classification and park variance data.
On September 19, Josh Kalk published “Corrections to the Corrections?“, an article about looking for changes over time in his park corrections to the PITCHf/x data.

Troy Patton

On August 31, Harry Pavlidis also published “Patton Preview”, an article looking at Astros’ pitcher Troy Patton.
On September 1, Harry Pavlidis published “Patton vs. Wandy”, an article about pitchers Troy Patton and Wandy Rodriguez.

Jake Peavy

On July 13, Joe P. Sheehan published “Under Pressure”, on pitchers Jake Peavy and Dan Haren and their pitch selection in high-pressure versus low-pressure situations.
On August 2, Anthony published “I Love It When a Plan Comes Together”, an article about Jake Peavy making an effort to mix his pitches better.
On August 27, mb22414 published “Jake Peavy: Pitch Variation and Velocity”, an article looking at pitcher Jake Peavy and his pitch selection.
On August 28, mb22414 published “Classifying Peavy’s Pitches”, an article about Jake Peavy’s pitch types in his August 22nd start.
On September 7, mb22414 published “Another Look at Jake Peavy”, an article looking at Jake Peavy’s September 5th start and classifying his pitches.
On September 19, Josh Kalk published “Corrections to the Corrections?“, an article about looking for changes over time in his park corrections to the PITCHf/x data.
On September 20, mb22414 published “Catching Up on All Things PITCHf/x“, an article about Jake Peavy’s pitch types.
On September 27, mb22414 published “A New Jake Peavy for a Day“, an article about Jake Peavy’s September 26th start.
On September 28, Joe P. Sheehan published “Scouting Jake Peavy“, an article profiling pitcher Jake Peavy.

Brad Penny

On September 4, Harry Pavlidis published “Dodgers v Cubs”, an article about pitch types thrown by the Dodgers’ rotation: Brad Penny, Derek Lowe, Esteban Loaiza, Eric Stults.

Andy Pettitte

On September 16, Whither published “Gameday Pearl Radar” (Google translation of the title, sorry!), a Chinese-language article about pitch classification for Andy Pettitte, Daisuke Matsuzaka, Chien-Ming Wang, Josh Beckett, Roger Clemens, and Curt Schilling. The graphs are in English, so you might get something out of the article even if you can’t read Chinese.

Mariano Rivera

On December 9, I published “Tales of the Cutter: Mariano Rivera“, an article classifying pitches and showing strike zone charts for Mariano Rivera.

Wandy Rodriguez

On September 1, Harry Pavlidis published “Patton vs. Wandy”, an article about pitchers Troy Patton and Wandy Rodriguez.

Kenny Rogers

On October 26, 2006, Dan Fox published “Information Revolution”, an introductory article about the PITCHf/x system.
On March 29, Joe P. Sheehan published “Enhanced Gameday”, an article about various pitchers from the 2006 playoffs, looking at pitch location, release points, and classifying pitches for Mike Mussina.
On June 3, Bill Ferris published “A Different Look at Andrew Miller”, an article about pitchers Andrew Miller and Kenny Rogers and classifying their pitches.
On July 29, Bill Ferris published “Comparing Kenny Rogers to Kenny Rogers”, an article about, guess who…You’re right! Kenny Rogers.

Kirk Saarloos

On September 14, Josh Kalk published “Reds @ Brewers Pitching Preview“, an article applying his pitch classification algorithm to Tom Shearn, Kirk Saarloos, Matt Belisle, Ben Sheets, Jeff Suppan, and Carlos Villanueva.

C.C. Sabathia

On October 12, Joe P. Sheehan published “Beckett vs. Sabathia“, an article classifying pitches and examining pitching strategies for Josh Beckett and C.C. Sabathia.
On October 19, Joe P. Sheehan published “Pitch Sequencing“, an article examining pitch sequences for Josh Beckett, C.C. Sabathia, and Greg Maddux.

Johan Santana

On June 14, Joe P. Sheehan published “Ch-ch-ch-ch-changes…”, on the effectiveness of the changeup and pitchers Cole Hamels, Josh Beckett, Trevor Hoffman, and Johan Santana.
On August 20, Steve West published “Thank You Mr. Santana, May We Have Another?”, an article classifying Johan Santana’s pitches in his 17-strikeout performance against the Rangers on August 19th.
On July 14, Prof Pepper published “Cosi Si Vincono I Cy Young, Baby!“, an Italian-language article about pitchers Johan Santana and Joe Nathan.
On January 9, 2008, I published “Tales of the Changeup: An Analysis of Johan Santana“, an article classifying pitches for Johan Santana and showing his pitch mix and strike zone charts by pitch type and batter handedness.

Curt Schilling

On June 26, John Walsh published “Schilling’s Aching Schoulder”, an article about detecting Curt Schilling’s shoulder injury in the Enhanced Gameday data.
On September 16, Whither published “Gameday Pearl Radar” (Google translation of the title, sorry!), a Chinese-language article about pitch classification for Andy Pettitte, Daisuke Matsuzaka, Chien-Ming Wang, Josh Beckett, Roger Clemens, and Curt Schilling. The graphs are in English, so you might get something out of the article even if you can’t read Chinese.
On October 21, Jonathan Hale published “Pitching on Fumes“, an article about Curt Schilling’s Game 6 start in the ALCS.
On October 25, SoxScout posted pitch characterizations for Curt Schilling’s World Series Game 2 start and Hideki Okajima’s relief appearance to the Sons of San Horn message board. See post #28.

Ben Sheets

On August 29, Harry Pavlidis published “Zambrano vs. Sheets, in LA”, an article comparing pitchers Carlos Zambrano and Ben Sheets from starts earlier in the season in Dodger Stadium.
On August 30, Josh Kalk published “Sheets Returns from the DL”, an article looking at Ben Sheets’ start on August 29th.
On August 31, Harry Pavlidis published “Zambrano vs. Sheets, Wrigley Edition”, an article comparing Carlos Zambrano and Ben Sheets in their starts in the August 29th game.
On September 14, Josh Kalk published “Reds @ Brewers Pitching Preview“, an article applying his pitch classification algorithm to Tom Shearn, Kirk Saarloos, Matt Belisle, Ben Sheets, Jeff Suppan, and Carlos Villanueva.

Tom Shearn

On September 14, Josh Kalk published “Reds @ Brewers Pitching Preview“, an article applying his pitch classification algorithm to Tom Shearn, Kirk Saarloos, Matt Belisle, Ben Sheets, Jeff Suppan, and Carlos Villanueva.
On September 19, Harry Pavlidis published “Tonight’s Opponent: Tom Shearn“, an article classifying pitch types for Tom Shearn.
On September 19, Harry Pavlidis published “Shearn Speed“, an article looking at start-to-start variance in pitch speed for Tom Shearn and whether it is a park and wind-related effect.

James Shields

On June 3, ultxmxpx posted “Shields/Kazmir pitch selection” as a topic on the RaysBaseball forum.
On January 11, 2008, I published “A PITCHf/x Analysis of James Shields“, an article classifying pitches for James Shields and showing his pitch mix and strike zone charts by pitch type and batter handedness.

Brian Shouse

On September 12, Josh Kalk published “More Fun with PITCHf/x“, an article applying his pitch classification algorithm to Yovani Gallardo, Francisco Cordero, Chris Capuano, and Brian Shouse.

Carlos Silva

On April 26, Joe P. Sheehan published “That Sinking Feeling”, an article about the two-seam fastball, examining pitchers Derek Lowe, Aaron Cook, Brandon Webb, and Carlos Silva.
On December 18, Dave Cameron published “Carlos Silva“, an article examining Silva’s pitching style based on Josh Kalk’s PITCHf/x data.

John Smoltz

On December 5, I published “What Does John Smoltz Throw?“, an article classifying pitches for John Smoltz.

Ian Snell

On December 30, Jake at BuccoBlog published “PITCHf/x, Beaver’s Culture, and Only 2 Days Left“, an article showing the pitch results for fastballs thrown by Pat Maholm, Ian Snell, Tom Gorzelanny, Matt Morris, and Zack Duke.

Joakim Soria

On December 13, I published “Tales of the Cutter: An Analysis of Joakim Soria“, an article classifying pitches for Joakim Soria and showing his pitch mix and strike zone charts by pitch type and batter handedness.

Ryan Speier

On October 25, Jonathan Hale published “Worst. Outing. Ever.“, an article about Ryan Speier’s World Series Game 1 performance.

Eric Stults

On September 3, Harry Pavlidis published “Stults – Trial Balloon”, an article showing 3-D pitch trajectory plots for pitcher Eric Stults.
On September 4, Harry Pavlidis published “Dodgers v Cubs”, an article about pitch types thrown by the Dodgers’ rotation: Brad Penny, Derek Lowe, Esteban Loaiza, Eric Stults.

Jeff Suppan

On September 14, Josh Kalk published “Reds @ Brewers Pitching Preview“, an article applying his pitch classification algorithm to Tom Shearn, Kirk Saarloos, Matt Belisle, Ben Sheets, Jeff Suppan, and Carlos Villanueva.

Robinson Tejeda

On June 18, Steve West published “Rangers Rotation Pitch Types”, an article classifying the pitch types of Texas pitchers Kevin Millwood, Brandon McCarthy, Kameron Loe, Vicente Padilla, and Robinson Tejeda.
On June 25, Steve West published “Rangers Rotation Release Points Redux”, an article examining whether the Texas starters were tipping their pitches by varying release points.
On July 12, Steve West published “Pitch Break Angle vs Length”, and article about classifying pitch types using these two new PITCHf/x parameters.

Justin Verlander

On July 26, Joe P. Sheehan published a collection of PITCHf/x-related notes under the title “Not an Article about Pitching at Altitude”. He discusses preliminary data about the effect of altitude on the break of pitches, and updates his BABIP charts from “Location, Location, Location”.

Carlos Villanueva

On September 14, Josh Kalk published “Reds @ Brewers Pitching Preview“, an article applying his pitch classification algorithm to Tom Shearn, Kirk Saarloos, Matt Belisle, Ben Sheets, Jeff Suppan, and Carlos Villanueva.

Edinson Volquez

On September 8, Steve West published “Switching on a Lightbulb”, an article about pitcher Edinson Volquez.
On September 11, I published “How Many Seams Are You Holding?“, an article about differentiating the four-seam fastball and two-seam fastball from Edinson Volquez.

Tim Wakefield

On June 21, in “Gameday Meets the Knuckleball”, Dan Fox looked at pitcher Tim Wakefield and his knuckleball.
On October 17, Jonathan Hale published “Game 4 ALCS–Pitch f/x Analysis of Wakefield vs. Byrd“, an article about the ALCS Game 4 starts by Tim Wakefield and Paul Byrd.
On November 27, John Walsh published “Butterflies Are Not Bullets“, an article examining pitcher Tim Wakefield.

Billy Wagner

On August 27, Dan Fox published “Changeup Challenged”, an article classifying Billy Wagner’s pitches.

Chien-Ming Wang

On June 7, Whither published “Analysis of Wang’s Pitching Stuff via New Gameday Data”, an article about pitcher Chien-Ming Wang.
On June 19, Steve Calcagno published “Spending Gameday with Chien-Ming Wang…”, an article classifying Wang’s pitches.
On August 31, Whither published an article about Chien-Ming Wang’s start against Boston on August 30th: http://blog.roodo.com/Whither/archives/4052827.html
On September 16, Whither published “Gameday Pearl Radar” (Google translation of the title, sorry!), a Chinese-language article about pitch classification for Andy Pettitte, Daisuke Matsuzaka, Chien-Ming Wang, Josh Beckett, Roger Clemens, and Curt Schilling. The graphs are in English, so you might get something out of the article even if you can’t read Chinese.
On October 9, Whither published “For Gameday Regulars Only“, an article about Chien-Ming Wang’s pitch mix.

David Weathers

On September 24, Justin inAZ published “Could Jared Burton Be Another Mariano Rivera?“, an article with pitch classification plots from fellow author John Walsh for pitchers Homer Bailey, David Weathers, Jared Burton, Bill Bray, Todd Coffey, and Gary Majewski.

Jeff Weaver

On February 28, Joe P. Sheehan published “Fingerprinting Jeff Weaver”, an article about pitcher Jeff Weaver, classifying his pitches based on his performance in the 2006 playoffs with St. Louis.
On June 21, Dave Cameron published “Weaver: Better Stuff?”, an article about the velocity and movement on Jeff Weaver’s pitches.
On August 13, Dave Cameron published “Jeff Weaver, Junkballer”, an article about Jeff Weaver’s start on August 12th.

Brandon Webb

On April 26, Joe P. Sheehan published “That Sinking Feeling”, an article about the two-seam fastball, examining pitchers Derek Lowe, Aaron Cook, Brandon Webb, and Carlos Silva.
On August 22, I published “Brandon Webb, Pitch Mixer Extraordinaire?”, an article looking at the pitch selection by Brandon Webb.
On August 22, the following article was published in the Chinese language about Brandon Webb: http://badassbaseball.blogspot.com/2007/08/webb-42-scoreless-innings-on-gameday.html

Jake Westbrook

On October 16, Jonathan Hale published “Pitch Analysis of Jake Westbrook ALCS Game 3–Red Sox vs. Indians“, an article about Jake Westbrook’s ALCS Game 3 start.

C.J. Wilson

On August 16, Steve West published “Passing Out POTY Ballots”, an article about choosing the Rangers’ best pitcher of 2007, and also classifying pitches for Joaquin Benoit and C.J. Wilson.

Randy Wolf

On June 6, John Walsh published “In Search of the Sinker”, one of the definitive articles on classifying pitches. In this process John examines the sinking fastball and pitcher Randy Wolf.

Jamey Wright

On July 12, Steve West published “Pitch Break Angle vs Length”, and article about classifying pitch types using these two new PITCHf/x parameters.

Chris Young

On August 23, Dan Fox published “Visualizing Pitches”, an article looking at pitch trajectories in three dimensions.

Carlos Zambrano

On August 29, Harry Pavlidis published “Zambrano vs. Sheets, in LA”, an article comparing pitchers Carlos Zambrano and Ben Sheets from starts earlier in the season in Dodger Stadium.
On August 31, Harry Pavlidis published “Zambrano vs. Sheets, Wrigley Edition”, an article comparing Carlos Zambrano and Ben Sheets in their starts in the August 29th game.

Barry Zito

On May 25, Joe P. Sheehan published “Dangerous Curves”, on the break of the curveball and pitchers Barry Zito and Rich Hill.
On August 23, Dan Fox published “Visualizing Pitches”, an article looking at pitch trajectories in three dimensions.
On September 21, Joe P. Sheehan published “‘Breaking’ Away“, an article about methods of describing and quantifying pitch movement, or break, looking at Barry Zito’s pitch types with these methods, and listing pitchers with the largest break for each of the major pitch types.

Joel Zumaya

On October 26, 2006, Dan Fox published “Information Revolution”, an introductory article about the PITCHf/x system.
On March 29, Joe P. Sheehan published “Enhanced Gameday”, an article about various pitchers from the 2006 playoffs, looking at pitch location, release points, and classifying pitches for Mike Mussina.
On April 13, Bill Ferris published “A Different Look at Zumaya’s Outing”, an article about velocity and release point in Joel Zumaya’s two-inning save on April 12th.

Other Pitchers

On September 11, Josh Kalk published “Player Cards“, an article about the initial results from his pitch classification algorithm. Along with the article is a link to a set of graphs for almost 300 pitchers.
On September 19, John Walsh published “Pitch Identification Tutorial“, as its title indicates, a tutorial about pitch types, including pitch charts for about 150 pitchers.
On September 20, Josh Kalk published “Brand New Player Cards“, an article with links to his new pitcher charts with normalized x-z initial points and accelerations, this time including home and road data.
On November 14, Josh Kalk published “Web-based PITCHf/x Tool“, an article introducing a web-based tool to query his PITCHf/x database.
On December 3, Josh Kalk published “Web-based PITCHf/x Tool Help/Comment Page“, an article explaining the updates to the PITCHf/x query tool.
On December 13, Josh Kalk published “Anatomy of a Player: League Average Pitcher“, an article detailing the average pitch speeds and spin-induced break for major league fastballs, sinkers, and cutters.
On December 20, John Walsh published “Fastball, Slider, Changeup, Curveball–An Analysis“, an article detailing the league average speed and spin movement, usage by handedness and count, and results for pitches and balls in play for each of the four basic pitch types. This piece is an outstanding reference.

Last updated January 15, 2008.

September 1, 2007

Enhanced Gameday analysis cataloged by author

Posted by Mike Fast under gameday, pitchfx catalog
[2] Comments

The updated version of this catalog is now hosted by The Hardball Times.

In the spirit of better organization, here is the Enhanced Gameday analysis catalog organized by author.

You can also see the full list of articles by date, and articles about pitchers listed by pitcher.

Anthony at FriarWatch (3 articles)

On April 23, he posted “How to use MLB Gameday Data”, describing some of the PITCHf/x data fields.
On April 25, he posted “Mark Buehrle’s No Hitter”, looking at the pitch location and umpire strike zone for the game from April 18th.
On August 2, he published “I Love It When a Plan Comes Together”, an article about Jake Peavy making an effort to mix his pitches better.

BadAssBaseball blog (3 articles)

On June 28, the following article was published in the Chinese language about Felix Hernandez: http://badassbaseball.blogspot.com/2007/06/enhance-gameday-4-seamerfelix.html
On July 3, the following article was published in the Chinese language about Hong-Chih Kuo: http://badassbaseball.blogspot.com/2007/07/enhanced-gameday-4-seamerslider.html
On August 22, the following article was published in the Chinese language about Brandon Webb: http://badassbaseball.blogspot.com/2007/08/webb-42-scoreless-innings-on-gameday.html

Chris at Bay City Ball (2 articles)

On January 23, 2008, he published “PITCHf/x: Examining Barry Zito’s 2007 Season“, an article about Barry Zito’s pitch repertoire and results.
On February 11, 2008, he published “PITCHf/x: Examining Matt Cain’s 2007 Season“, an article about Matt Cain’s pitch repertoire and results.

John Beamer (2 articles)

On May 7, THT published “Under the Skin of Enhanced Gameday”, an important article about the park-to-park accuracy of the PITCHf/x data, particularly release points.
On July 2, THT published “A Close Look at Tim Hudson”, an article about pitcher Tim Hudson and classifying his pitches using a statistical clustering function.

Jake at Bucco Blog (4 articles)

On October 26, Jake at Bucco Blog published “Manager Poll, Rumors, and PITCHf/x“, an article listing the batting performance for Pirates’ hitters against various pitch types.
On October 28, Jake at Bucco Blog published “Even More Rumors, Poll, and PITCHf/x“, an article examining the percentage of pitch types that Pirates’ hitters saw in various ball-strike counts.
On December 30, Jake at Bucco Blog published “PITCHf/x, Beaver’s Culture, and Only 2 Days Left“, an article showing the pitch results for fastballs thrown by Pat Maholm, Ian Snell, Tom Gorzelanny, Matt Morris, and Zack Duke.
On December 30, Jake at Bucco Blog published “Dejan’s McLouth Pipe-Dream“, an article looking at Nate McLouth’s hitting performance against the slider.

Steve Calcagno (1 article)

On June 19, he published “Spending Gameday with Chien-Ming Wang…”, an article classifying Wang’s pitches.

Dave Cameron (3 articles)

On June 21, he published “Weaver: Better Stuff?”, an article about the velocity and movement on Jeff Weaver’s pitches.
On August 13, he published “Jeff Weaver, Junkballer”, an article about Jeff Weaver’s start on August 12th.
On December 18, he published “Carlos Silva“, an article examining Silva’s pitching style based on Josh Kalk’s PITCHf/x data.

Louis Chao (2 articles)

On June 26, he published, in Chinese, “Diggin’ in on the Sinker”, an article looking at sinkerball pitchers. Putting this article through Google Translate to English makes it clear why that tool is still in beta. 😉
On July 12, THT published “Another Look at the Sinker”, an article comparing the two-seam and four-seam fastballs and looking at pitcher A.J. Burnett.

Rob at Colamarino Has Titties (2 articles)

On January 17, 2008, he published “Jay-f/x 2007: Introduction“, an article looking at the PITCHf/x data and pitch selection for the Blue Jays pitching staff in 2007.
On January 23, 2008, he published “Jay-f/x 2007: Fastballs“, an article examining the PITCHf/x data for fastballs thrown by the Blue Jays pitching staff in 2007.

Chris Constancio (1 article)

On August 3, The Hardball Times published “Why Do Sinking Fastballs Cause Groundballs?”, an article looking at the difference in type of batted ball for pitchers who throw a sinking fastball versus those who throw a rising (or four-seam) fastball.

Mike Fast (28 articles)

Bill Ferris (10 articles)

On April 13, he published “A Different Look at Zumaya’s Outing”, an article about velocity and relaease point in Joel Zumaya’s two-inning save on April 12th.
On April 14, he published “A Different Look at the Bonderman-Halladay Duel”, an article about Jeremy Bonderman’s April 13th start.
On April 29, in his “Game 24: Twins at Tigers” recap, he used Gameday to chart pitcher Mike Maroth’s release point.
On June 3, he published “A Different Look at Andrew Miller”, an article about pitchers Andrew Miller and Kenny Rogers and classifying their pitches.
On July 29, he published “Comparing Kenny Rogers to Kenny Rogers”, an article about, guess who…You’re right! Kenny Rogers.
On September 14, he published “Fish Eye on the Tigers“, an article about the Detroit Tiger hitters’ plate discipline.
On September 15, he published “Jair Jurrjens 9/11 Start versus Texas“, an article examining his pitch breakdown and results from that start.
On September 17, he published “Jair Jurrjens 9/16 Start against the Twins“, an article examining his pitch breakdown and results from that start.
On February 10, 2008, he published “Scouting Dontrelle Willis“, an article looking at Dontrelle Willis’s pitch repertoire, how he uses it, and what results he gets.
On February 17, 2008, he published “Scouting Bonderman with pitch f/x“, an article looking at Jeremy Bonderman’s pitch repertoire, how he uses it, and what results he gets.

Dan Fox (22 articles)

Tom Goyne (2 articles)

On December 3, he published “Breaking Down Adam Eaton’s Breaking Ball“, an article looking at the break on Adam Eaton’s curve.
On December 21, he published “Breaking Down Adam Eaton’s Breaking Ball, Part II“, updating his previous article on the break of Adam Eaton’s curve.

Doug Gray (3 articles)

On October 12, MVN published “Breaking Down Homer Bailey Part 1“, an article looking at Homer Bailey’s curveball.
On October 13, MVN published “Breaking Down Homer Bailey Part 2“, an article looking at Homer Bailey’s fastball.
On October 14, MVN published “Breaking Down Homer Bailey Part 3“, an article looking at Homer Bailey’s changeup.

Jonathan Hale (32 articles)

Ike Hall (6 articles)

On September 12, he published “A Side Project Perhaps“, an article with some thoughts on the PITCHf/x data set and questions that could be asked of it.
On September 13, he published “Thinking about Calibration“, an article about PITCHf/x calibration procedures.
On September 17, he published “More PITCHfx Thoughts“, an article with further thoughts about PITCHf/x calibration procedures and trajectory calculation.
On September 24, he published “More Calibration Thoughts“, an article with additional thoughts about PITCHf/x calibration procedures.
On October 3, he published “Finding the Zone“, an article about strike zone measurement accuracy by park.
On February 27, 2008, he published “Acceleration due to drag and PitchF/X“, an article about park corrections to the acceleration data and examining the drag constant vs. velocity curves for various parks.

Josh Kalk (28 articles)

Justin Inaz (2 articles)

On September 19, he published “PITCHf/x Plots for Harang and Arroyo“, an article discussing pitch classification plots for pitchers Aaron Harang and Bronson Arroyo.
On September 24, he published “Could Jared Burton Be Another Mariano Rivera?“, an article with pitch classification plots from fellow author John Walsh for pitchers Homer Bailey, David Weathers, Jared Burton, Bill Bray, Todd Coffey, and Gary Majewski.

mb22414 from FriarForecast (6 articles)

On August 27, he published “Jake Peavy: Pitch Variation and Velocity”, an article looking at pitcher Jake Peavy and his pitch selection.
On August 28, he published “Classifying Peavy’s Pitches”, an article about Jake Peavy’s pitch types in his August 22nd start.
On September 7, he published “Another Look at Jake Peavy”, an article looking at Jake Peavy’s September 5th start and classifying his pitches.
On September 20, he published “Catching Up on All Things PITCHf/x“, an article about Jake Peavy’s pitch types.
On September 22, he published “Checking in on Pedro“, an article about pitcher Pedro Martinez’s performance since returning from surgery.
On September 27, he published “A New Jake Peavy for a Day“, an article about Jake Peavy’s September 26th start.

Dr. Alan Nathan (4 articles)

On August 8, he published “Analysis of PITCHf/x Pitched Baseball Trajectories” (PDF), a paper looking at Jon Lester’s start on August 3rd and classifying his pitches according to speed, spin magnitude, and spin direction. This technique shows important promise for pitch classification independent of release point measurement distance (y0). Plus there’s a lot of cool stuff on equations of motions for any other physicists out there.
On October 4, Eric Van and Alan Nathan posted a breakdown of Josh Beckett’s October 3rd playoff start to the Sons of Sam Horn message board. See posts #64, #92, and #93.
On December 19, he published “Effect of the Magnus Force in the PITCHf/x Tracking System“, an article deriving improved equations for the break and spin of a pitch due to the Magnus force, accounting for the effect of drag in the x and z directions.
On February 8, 2008, he published “A Statistical Study of PITCHf/x Pitched Baseball Trajectories“, an article about error calculation and propagation for quantities calculated from PITCHf/x data.

Mark Newman (1 article)

On October 2, MLB published “Pitch-f/x Adds Insight to Watching Games“, an article about the PITCHf/x camera system with details about the setup process.

Harry Pavlidis (36 articles)

Prof Pepper (6 articles)

On July 7, he published “Pitch by Pitch: Un Assaggio“, an Italian-language article about pitch location and the strike zone.
On July 14, he published “Cosi Si Vincono I Cy Young, Baby!“, an Italian-language article about pitchers Johan Santana and Joe Nathan.
On January 2, 2008, he published “Cosi’ Uguali, Cosi’ Diversi (Part 1)“, an Italian-language article looking for the most unique curveballs in major league baseball.
On January 5, 2008, he published “Cosi’ Uguali, Cosi’ Diversi (Part 2)“, an Italian-language article looking for the most unique fastballs in major league baseball.
On January 20, 2008, he published “Cosi’ Uguali, Cosi’ Diversi (Part 3)“, an Italian-language article looking for the most unique sliders, changeups, and curveballs in major league baseball along with illustrations of the grips for each pitch.
On February 3, 2008, he published “Cosi’ Uguali, Cosi’ Diversi (Part 4)“, an Italian-language article summarizing his series on the most unique pitches in major league baseball, discussing a few other less common pitches, and looking at the breakdown of outcomes for each pitch type, split out by handedness.

SG at Replacement Level Yankees Weblog (1 article)

On January 15, 2008, SG published “Pitch F/X and Joba Chamberlain“, an article looking at the results of Joba Chamberlain’s pitches by pitch type.

Greg Rybarczyk (1 article)

On February 28, 2008, THT published “Seeing is believing“, an article about a concept he calls observational analysis, expanding beyond PITCHf/x to capturing speed-off-bat data and fielding information.

Renè Saggiadi (0 articles)

Rene’s extensive list of articles in the Italian language can be found at his blog: .144.

Joe P. Sheehan (37 articles)

SoxScout (4 articles)

On October 24, SoxScout posted a pitch characterization for Josh Beckett’s World Series Game 1 start to the Sons of San Horn message board. See post #18.
On October 25, SoxScout posted pitch characterizations for Curt Schilling’s World Series Game 2 start and Hideki Okajima’s relief appearance to the Sons of San Horn message board. See post #28.
On October 27, SoxScout posted a pitch characterization for Daisuke Matsuzaka’s World Series Game 3 start to the Sons of San Horn message board. See post #34.
On October 28, SoxScout posted a pitch characterization for Jon Lester’s World Series Game 4 start to the Sons of San Horn message board. See post #35.

ultxmxpx (2 articles)

On June 3, he posted “Shields/Kazmir pitch selection” as a topic on the RaysBaseball forum.
On July 10, he published this list of pitchers and contact rate on their various pitches, which he had classified.

Eric Van (6 articles)

On October 4, he posted a breakdown of Josh Beckett’s October 3rd playoff start to the Sons of Sam Horn message board, post #64.
On October 4, Eric Van and Alan Nathan posted a breakdown of Josh Beckett’s October 3rd playoff start to the Sons of Sam Horn message board. See posts #64, #92, and #93.
On October 24, he posted a pitch type breakdown of Jeff Francis to the Sons of San Horn message board. See posts #14 and #17.
On October 25, he posted a pitch type breakdown of Ubaldo Jimenez to the Sons of San Horn message board. See post #25.
On October 27, he posted a pitch type breakdown of Josh Fogg to the Sons of San Horn message board. See post #32.
On October 30, he posted a pitch selection comparison for Jon Lester between his World Series Game 4 start and his ALCS relief appearance to the Sons of San Horn message board. See post #36.

John Walsh (10 articles)

On June 6, THT published “In Search of the Sinker”, one of the definitive articles on classifying pitches. In this process John examines the sinking fastball and pitcher Randy Wolf.
On June 26, THT published “Schilling’s Aching Schoulder”, an article about detecting Curt Schilling’s shoulder injury in the Enhanced Gameday data.
On July 11, THT published “Strike Zone: Fact vs. Fiction”, an article about the strike zone, as called by the umpires, versus right-handed and left-handed batters.
On July 25, THT published John’s followup article “The Eye of the Umpire”, containing some refinements to the previous article. The pair of articles are an excellent beginning to strike zone analysis.
On September 4, THT published “Squaring It Up”, an article examining the results of pitches in and out of the strike zone.
On September 19, THT published “Pitch Identification Tutorial“, as its title indicates, a tutorial about pitch types, including pitch charts for about 150 pitchers.
On November 1, THT published “Don’t Blame Pedro“, an article classifying pitches and examining pitching strategies for Pedro Martinez.
On November 27, THT published “Butterflies Are Not Bullets“, an article examining pitcher Tim Wakefield.
On December 20, THT published “Fastball, Slider, Changeup, Curveball–An Analysis“, an article detailing the league average speed and spin movement, usage by handedness and count, and results for pitches and balls in play for each of the four basic pitch types. This piece is an outstanding reference.
On February 26, 2008, THT published “Searching for the game’s best pitch“, an article describing a method for calculating per-pitch run values and presenting ratings of some of the best of each pitch type from 2007 on this basis.

Steve West (13 articles)

Whither (5 articles)

On June 7, he published “Analysis of Wang’s Pitching Stuff via New Gameday Data”, an article about pitcher Chien-Ming Wang.
On June 13, he published an article about pitcher Hong-Chih Kuo: http://blog.roodo.com/Whither/archives/3458611.html
On August 31, he published an article about Chien-Ming Wang’s start against Boston on August 30th: http://blog.roodo.com/Whither/archives/4052827.html
On September 16, he published “Gameday Pearl Radar” (Google translation of the title, sorry!), a Chinese-language article about pitch classification for Andy Pettitte, Daisuke Matsuzaka, Chien-Ming Wang, Josh Beckett, Roger Clemens, and Curt Schilling. The graphs are in English, so you might get something out of the article even if you can’t read Chinese.
On October 9, he published “For Gameday Regulars Only“, an article about Chien-Ming Wang’s pitch mix.

Update in progress…

Last updated March 1, 2008, with the exception of work by Harry Pavlidis (last updated January 15) and Renè Saggiadi. If those two guys weren’t so prolific, I would have gotten them into this update, too.

September 1, 2007

Enhanced Gameday analysis cataloged by date

Posted by Mike Fast under gameday, pitchfx catalog
[3] Comments

The updated version of this catalog is now hosted by The Hardball Times.

Since my catalog of enhanced gameday articles has now expanded past seventy, it’s time for better organization. This post has all the articles listed by date.

I also plan to have all the articles listed by author, by topic, by team, and by pitcher.

October 2006 (1 article)

On October 26, Dan Fox published “Information Revolution”, an article about the PITCHf/x system.

February 2007 (1 article)

On February 28, Joe P. Sheehan published “Fingerprinting Jeff Weaver”, an article about pitcher Jeff Weaver, classifying his pitches based on his performance in the 2006 playoffs with St. Louis.

March 2007 (1 article)

On March 29, Joe P. Sheehan published “Enhanced Gameday”, an article about various pitchers from the 2006 playoffs, looking at pitch location, release points, and classifying pitches for Mike Mussina.

April 2007 (7 articles)

On April 13, Bill Ferris published “A Different Look at Zumaya’s Outing”, an article about velocity and release point in Joel Zumaya’s two-inning save on April 12th.
On April 14, Bill Ferris published “A Different Look at the Bonderman-Halladay Duel”, an article about Jeremy Bonderman’s April 13th start.
On April 18, Joe P. Sheehan published “Another Look at Enhanced Gameday”, an article about pitch selection, velocity, and classifying pitches for Felix Hernandez and Kevin Millwood.
On April 23, Anthony posted “How to use MLB Gameday Data”, describing some of the PITCHf/x data fields.
On April 25, Anthony posted “Mark Buehrle’s No Hitter”, looking at the pitch location and umpire strike zone for the game from April 18th.
On April 26, Joe P. Sheehan published “That Sinking Feeling”, an article about the two-seam fastball, examining pitchers Derek Lowe, Aaron Cook, Brandon Webb, and Carlos Silva.
On April 29, in his “Game 24: Twins at Tigers” recap, Bill Ferris used Gameday to chart pitcher Mike Maroth’s release point.

May 2007 (6 articles)

On May 7, John Beamer published “Under the Skin of Enhanced Gameday”, an important article about the park-to-park accuracy of the PITCHf/x data, particularly release points.
On May 10, Dan Fox’s article “Phil Hughes, Pitch by Pitch” discussed Hughes’ May 1st start in detail, including release point and fastball velocity throughout the game.
On May 11, Joe P. Sheehan published “Location, Location, Location”, tracking the location, BABIP, and swing percentage of pitches in different grid locations around the strike zone.
On May 24, Dan Fox featured “Batter Versus Pitcher, Gameday Style”, an article about pitch velocity and strike zone accuracy.
On May 25, Joe P. Sheehan published “Dangerous Curves”, on the break of the curveball and pitchers Barry Zito and Rich Hill.
On May 31, Dan Fox published “Physics on Display”, an article about fastball deceleration from release to the plate and pitchers’ fastball velocity throughout the game.

June 2007 (19 articles)

July 2007 (14 articles)

August 2007 (35 articles)

September 2007 (69 articles)

October 2007 (48 articles)

November 2007 (19 articles)

December 2007 (20 articles)

January 2008 (12 articles)

Current article count is 252 through January 15.

August 10, 2007

Enhanced Gameday analysis catalog update

Posted by Mike Fast under gameday, pitchfx catalog
1 Comment

The updated version of this catalog is now hosted by The Hardball Times.

In the week since I published and updated my catalog, there have been a few new articles published.

Our favorite PITCHf/x author, Joe P. Sheehan, has another good one in a long line of great articles.

On August 10, he published “Makin’ a Filter”, an article about an automated method for classifying all pitches into either fastball or off-speed and drawing some conclusions from the data about when each type of pitch is thrown.

Steve West at Go Rangers! has been cranking out the analysis:

On August 3, he published “More McCarthy”, an article about pitcher Brandon McCarthy, classifying his pitches.
On August 7, he published “The Slings and Arrows of Outrageous Strike Zones”, an article comparing the umpire strike zones in the Texas-Oakland game of August 6th.
On August 9, he published “Random Strike Zones Part 2”, an article investigating the results of pitches to Michael Young.

Dr. Alan Nathan has published a very interesting paper on his Physics of Baseball site.

On August 8, he published “Analysis of PITCHf/x Pitched Baseball Trajectories” (PDF), a paper looking at Jon Lester’s start on August 3rd and classifying his pitches according to speed, spin magnitude, and spin direction. This technique shows important promise for pitch classification independent of release point measurement distance (y0). Plus there’s a lot of cool stuff on equations of motions for any other physicists out there.

We also welcome a new author to the PITCHf/x analysis fold in Chris Constancio.

On August 3, The Hardball Times published “Why Do Sinking Fastballs Cause Groundballs?”, an article looking at the difference in type of batted ball for pitchers who throw a sinking fastball versus those who throw a rising (or four-seam) fastball.

Anthony has a short article up at Friar Watch.

On August 2, he published “I Love It When a Plan Comes Together”, an article about Jake Peavy making an effort to mix his pitches better.

Finally, ultxmxpx has updated his pitch classification page.

August 17 and August 25 updates:

Dan Fox has a new article up at Baseball Prospectus (subscription required).

On August 16, BP published “Putting the Pedal to the Metal”, an article using PITCHf/x to examine whether pitchers get speed and movement on their pitches in clutch situations.
On August 23, BP published “Visualizing Pitches”, an article looking at pitch trajectories in three dimensions.

Steve West has a new article at Go Rangers! .

On August 16, he published “Passing Out POTY Ballots”, an article about choosing the Rangers’ best pitcher of 2007, and also classifying pitches for Joaquin Benoit and C.J. Wilson.
On August 20, he published “Thank You Mr. Santana, May We Have Another?”, an article classifying Johan Santana’s pitches in his 17-strikeout performance against the Rangers on August 19th.

Dave Cameron has a new article at U.S.S. Mariner.

On August 13, he published “Jeff Weaver, Junkballer”, an article about Jeff Weaver’s start on August 12th.

Joe P. Sheehan has a new article at Baseball Analysts.

On August 17, he published “May I Have Seconds”, an article about calculating pitched ball trajectories.
On August 24, he published “Park Differences and Reaction Distances”, an article examining PITCHf/x data inconsistencies between parks and looking at batter reactions times and distances for different pitches.

Once again we extend a welcome to a new author, this time Harry at his new blog Cubs F/X.

On August 22, he published “Rich Hill’s Four Pitches”, an article classifying, not surprisingly, Rich Hill’s pitches.
On August 23, he published “Rich Hill – Numbers”, an article looking at the results of those pitches.
On August 24, he published “Micah Owings”, an article classifying the pitches of Micah Owings.

September 1 update:

Dan Fox has a couple new articles at various places.

On August 25, the Rocky Mountain SABR chapter published “Jimenez Delivers”, an article about Ubaldo Jimenez’s August 25th start.
On August 27, the BP Unfiltered blog published “Changeup Challenged”, an article classifying Billy Wagner’s pitches.

Steve West has a new article at Go Rangers!

On August 30, he published “Danks but No Danks”, an article looking at pitcher John Danks and classifying his pitches.

Harry Pavlidis has been cranking out the analysis at Cubs F/X.

On August 26, he published “Just an Example” and “More out of the Zone”, a pair of articles about players who swing at pitches above or below the strike zone.
On August 29, he published “Zambrano vs. Sheets, in LA”, an article comparing pitchers Carlos Zambrano and Ben Sheets from starts earlier in the season in Dodger Stadium.
On August 31, he published “Zambrano vs. Sheets, Wrigley Edition”, an article comparing Carlos Zambrano and Ben Sheets in their starts in the August 29th game.
On August 31, he also published “Patton Preview”, an article looking at Astros’ pitcher Troy Patton.
On September 1, he published “Patton vs. Wandy”, an article about pitchers Troy Patton and Wandy Rodriguez.

Once again, a hearty welcome goes out as we welcome another PITCHf/x researcher to the fold: mb22414 from the Friar Forecast blog.

On August 27, he published “Jake Peavy: Pitch Variation and Velocity”, an article looking at pitcher Jake Peavy and his pitch selection.
On August 28, he published “Classifying Peavy’s Pitches”, an article about Jake Peavy’s pitch types in his August 22nd start.

Cafe Whither has another Chinese-language article.

On August 31, he published an article about Chien-Ming Wang’s start against Boston on August 30th: http://blog.roodo.com/Whither/archives/4052827.html

August 1, 2007

Catalog of Enhanced Gameday analysis

Posted by Mike Fast under gameday, pitchfx catalog
[9] Comments

The updated version of this catalog is now hosted by The Hardball Times.

In the 2006 postseason, Major League Baseball introduced a feature they called Enhanced Gameday, based on the PITCHf/x camera system from Sportvision. Based in Mountain View, California, Sportvision is also the creator of the yellow first-down line that appears on football telecasts. The PITCHf/x cameras capture the speed and location of the pitched baseball throughout its flight to home plate. Dr. Alan Nathan has a good description of how the system works on his Physics of Baseball site. MLB has, for now, made this data accessible in the XML files freely available for download from its Gameday website.

This summer, a number of baseball analysts have begun using this new data to tackle questions heretofore out of the realm of the common researcher. Others have made brief summaries of the published research, but I haven’t seen a comprehensive catalog. What follows is an attempt at such a catalog. If I have overlooked anyone or left out any articles, please bring it to my attention. Order is not necessarily a reflection of importance, but I have tried to list the earliest and/or most groundbreaking work first.

(If you want a quick introduction to the field without having to read through all the articles below, I recommend John Walsh’s “In Search of the Sinker” and Joe P. Sheehan’s “More Fun with Enhanced Gameday”.)

First and foremost among these analysts is Joe P. Sheehan, who has published nine articles on the topic at Baseball Analysts, one at The Hardball Times, and one at his Juice of Jesus blog.

On February 28, he published “Fingerprinting Jeff Weaver”, an article about pitcher Jeff Weaver, classifying his pitches based on his performance in the 2006 playoffs with St. Louis.
On March 29, he published “Enhanced Gameday”, an article about various pitchers from the 2006 playoffs, looking at pitch location, release points, and classifying pitches for Mike Mussina.
On April 18, THT published “Another Look at Enhanced Gameday”, an article about pitch selection, velocity, and classifying pitches for Felix Hernandez and Kevin Millwood.
On April 19, he published “More Fun with Enhanced Gameday”, an article about consistency of pitch movement, location, and release points, and classifying pitches for John Lackey.
On April 26, he published “That Sinking Feeling”, an article about the two-seam fastball, examining pitchers Derek Lowe, Aaron Cook, Brandon Webb, and Carlos Silva.
On May 11, he published “Location, Location, Location”, tracking the location, BABIP, and swing percentage of pitches in different grid locations around the strike zone.
On May 25, he published “Dangerous Curves”, on the break of the curveball and pitchers Barry Zito and Rich Hill.
On June 14, he published “Ch-ch-ch-ch-changes…”, on the effectiveness of the changeup and pitchers Cole Hamels, Josh Beckett, Trevor Hoffman, and Johan Santana.
On June 28, he published “Is There Something in the Way It Moves?”, on pitcher Roy Halladay and the consistency of his stuff from start to start.
On July 13, he published “Under Pressure”, on pitchers Jake Peavy and Dan Haren and their pitch selection in high-pressure versus low-pressure situations.
On July 26, he published a collection of PITCHf/x-related notes under the title “Not an Article about Pitching at Altitude”. He discusses preliminary data about the effect of altitude on the break of pitches, and updates his BABIP charts from “Location, Location, Location”.

Another major researcher in the field is Dan Fox, author of the Schrodinger’s Bat column at Baseball Prospectus and the Dan Agonistes blog. Most of his work is available for BP subscribers only. His June-July series on Hernandez, Wakefield, and Matsuzaka is a great primer on classifying pitches.

On October 26, 2006, BP published “Information Revolution”, an introductory article about the PITCHf/x system.
On May 10, his article “Phil Hughes, Pitch by Pitch” discussed Hughes’ May 1st start in detail, including release point and fastball velocity throughout the game.
On May 24, BP featured “Batter Versus Pitcher, Gameday Style”, an article about pitch velocity and strike zone accuracy.
On May 31, BP published “Physics on Display”, an article about fastball deceleration from release to the plate and pitchers’ fastball velocity throughout the game.
On June 7, BP published “Gameday Triple Play”, an article about pitch deceleration, establishing the fastball, and measuring hitters’ plate discipline.
On June 14, BP published “The Science and Art of Building a Better Pitcher Profile”, about pitcher Felix Hernandez and methods for classifying his pitches.
On June 21, in “Gameday Meets the Knuckleball”, Dan looked at pitcher Tim Wakefield and his knuckleball.
On July 5, BP published “Searching for the Gyroball”, an article about pitcher Daisuke Matsuzaka and classifying his pitches.

A third important contributor is John Walsh, a nuclear physics professor at the Istituto Nazionale di Fisica Nucleare in Pisa, Italy. He has published several articles at The Hardball Times:

On June 6, THT published “In Search of the Sinker”, one of the definitive articles on classifying pitches. In this process John examines the sinking fastball and pitcher Randy Wolf.
On June 26, THT published “Schilling’s Aching Schoulder”, an article about detecting Curt Schilling’s shoulder injury in the Enhanced Gameday data.
On July 11, THT published “Strike Zone: Fact vs. Fiction”, an article about the strike zone, as called by the umpires, versus right-handed and left-handed batters.
On July 25, THT published John’s followup article “The Eye of the Umpire”, containing some refinements to the previous article. The pair of articles are an excellent beginning to strike zone analysis.

Next we come to John Beamer, author of a couple articles at The Hardball Times:

On May 7, THT published “Under the Skin of Enhanced Gameday”, an important article about the park-to-park accuracy of the PITCHf/x data, particularly release points.
On July 2, THT published “A Close Look at Tim Hudson”, an article about pitcher Tim Hudson and classifying his pitches using a statistical clustering function.

Over at the Go Rangers! blog, Steve West is another PITCHf/x researcher.

On June 14, he published “Rotation Release Points”, an article about the release point consistency of the starting rotations of Texas, Anaheim, and Oakland.
On June 18, he published “Rangers Rotation Pitch Types”, an article classifying the pitch types of Texas pitchers Kevin Millwood, Brandon McCarthy, Kameron Loe, Vicente Padilla, and Robinson Tejeda.
On June 25, he published “Rangers Rotation Release Points Redux”, an article examining whether the Texas starters were tipping their pitches by varying release points.
On July 12, he published “Pitch Break Angle vs Length”, and article about classifying pitch types using these two new PITCHf/x parameters. This article is a useful complement to the pitch classification work of Fox, Walsh, and Beamer.
On July 30, he published “Do Pitchers Affect the Strike Zone”, a look at batted ball results plotted against pitch location in the strike zone.

Next up is Bill Ferris at the Detroit Tigers Weblog with a few articles on Tiger pitchers. Because Bill is so prolific a blogger, I may have missed something of his on the topic.

On April 13, he published “A Different Look at Zumaya’s Outing”, an article about velocity and relaease point in Joel Zumaya’s two-inning save on April 12th.
On April 14, he published “A Different Look at the Bonderman-Halladay Duel”, an article about Jeremy Bonderman’s April 13th start.
On April 29, in his “Game 24: Twins at Tigers” recap, he used Gameday to chart pitcher Mike Maroth’s release point.
On June 3, he published “A Different Look at Andrew Miller”, an article about pitchers Andrew Miller and Kenny Rogers and classifying their pitches.
On July 29, he published “Comparing Kenny Rogers to Kenny Rogers”, an article about, guess who…You’re right! Kenny Rogers.

Louis Chao has one article on The Hardball Times. Hat tip to Whither for pointing me to his first Chinese-language article at Andre’s Baseball Blog.

On June 26, he published, in Chinese, “Diggin’ in on the Sinker”, an article looking at sinkerball pitchers. Putting this article through Google Translate to English makes it clear why that tool is still in beta. 😉
On July 12, THT published “Another Look at the Sinker”, an article comparing the two-seam and four-seam fastballs and looking at pitcher A.J. Burnett.

At the beansTown blog, Steve Calcagno has one article.

On June 19, he published “Spending Gameday with Chien-Ming Wang…”, an article classifying Wang’s pitches.

Over at the U.S.S. Mariner, Dave Cameron has one article using Enhanced Gameday.

On June 21, he published “Weaver: Better Stuff?”, an article about the velocity and movement on Jeff Weaver’s pitches.

A Devil Rays’ fan who posts around the web as ultxmxpx has a website where he posted some Enhanced Gameday pitch analysis.

On June 3, he posted “Shields/Kazmir pitch selection” as a topic on the RaysBaseball forum.
On July 10, he published this list of pitchers and contact rate on their various pitches, which he had classified.

Anthony has Enhanced Gameday stuff scattered here and there throughout his blog at Friar Watch.

On April 23, he posted “How to use MLB Gameday Data”, describing some of the PITCHf/x data fields.
On April 25, he posted “Mark Buehrle’s No Hitter”, looking at the pitch location and umpire strike zone for the game from April 18th.

There are also some other Chinese language articles on this topic. I wish I could understand a bit more than what I can gather from Google translations, but I’ll present them here for those of you who do know Chinese.

Even if you’re an English speaker, you might be able to gather something from the Google translation and the graphs at Cafe Whither. Thanks to Whither for the first link.

On June 7, he published “Analysis of Wang’s Pitching Stuff via New Gameday Data”, an article about pitcher Chien-Ming Wang.
On June 13, he published an article about pitcher Hong-Chih Kuo: http://blog.roodo.com/Whither/archives/3458611.html

And here are a couple other Chinese language articles.

On June 26, about pitcher Josh Beckett: http://blog.xuite.net/stfo/blog/12293879
On July 3, also about Hong-Chih Kuo: http://badassbaseball.blogspot.com/2007/07/enhanced-gameday-4-seamerslider.html

I hope to contribute a little of my own work in the near future, but I felt the right place to start this discussion was with a recap of what has been done. Enjoy!

Update: New articles listed in this post.

Full list of articles by author.

Full list of articles by date.

Articles about pitchers listed by pitcher.

Fast Balls

pitchfx catalog

Updated catalog is available

Status of the catalog

Enhanced Gameday analysis cataloged by pitcher

Enhanced Gameday analysis cataloged by author

Enhanced Gameday analysis cataloged by date

Enhanced Gameday analysis catalog update

Catalog of Enhanced Gameday analysis

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