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