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Articles Tagged Pitch Frequency 

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A few days after the rollout of the BP Hitter Profiles, we present their companion piece, the Pitcher Profiles.

Last weekend we posted “Hitter Profiles,” which let you look at PITCHf/x data for each hitter in MLB filtered by a bunch of different attributes. Today, we’re posting their companion piece, “Pitcher Profiles.” You can search for pitchers here. As we did for the Hitter Profiles, we’ll be adding a dropdown link to the search interface from the “Statistics” tab on the nav bar at the top of the page.

We think these profiles will revolutionize the way people look at PITCHf/x data. Location is perhaps the most important attribute of a pitch, and the Pitcher Profiles allow you to examine the results of pitches across multiple spatial locations. PITCHf/x data has been available for five years, but we haven’t been able to examine it this way, at least publicly. (There are scouting services that provide this kind of data.) It was the first thing that a scout I talked to asked for.

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You might not know it from watching the World Series, but it often makes sense for a manager to pinch hit for his starter before the late innings.

Believe it or not, most of our writers didn't enter the world sporting an @baseballprospectus.com address; with a few exceptions, they started out somewhere else. In an effort to up your reading pleasure while tipping our caps to some of the most illuminating work being done elsewhere on the internet, we'll be yielding the stage once a week to the best and brightest baseball writers, researchers and thinkers from outside of the BP umbrella. If you'd like to nominate a guest contributor (including yourself), please drop us a line.

Mitchel Lichtman, or MGL, has been doing sabermetric research and writing for over 20 years. He is one of the authors of The Book: Playing the Percentages in Baseball, and co-hosts The Book blog, www.insidethebook.com. He consulted for the St. Louis Cardinals from 2004 to 2006, as well as other major-league teams. He holds a B.A. from Cornell University and a J.D. from the University of Nevada Boyd School of Law. Most of the time these days you can find him on the golf course.


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What factors determine how often hitters take one for the team?

Every season major league pitchers throw tens of thousands of pitches inside off the plate, yet they hit batters “only” about 1500-1800 times in a season. Why do some inside pitches hit the batter, while others do not?

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Our latest guest contributor makes the case for changing the frame of reference in PITCHf/x analysis to reflect the way pitches actually appear to the batter.

Believe it or not, most of our writers didn't enter the world sporting an @baseballprospectus.com address; with a few exceptions, they started out somewhere else. In an effort to up your reading pleasure while tipping our caps to some of the most illuminating work being done elsewhere on the internet, we'll be yielding the stage once a week to the best and brightest baseball writers, researchers and thinkers from outside of the BP umbrella. If you'd like to nominate a guest contributor (including yourself), please drop us a line.

Matt Lentzner has carved out a (very) small niche in the baseball analysis world by examining the intersection of physics and biomechanics. He has presented at the PITCHf/x conference in each of the last two years and has written articles for The Hardball Times. When he’s not writing, Matt works on his physics-based baseball simulator, which is so awesome and all-encompassing that it will likely never actually be finished, though it does provide the inspiration for most of his articles and presentations. In real life, he’s an IT Director at a small financial consulting company in the Silicon Valley and also runs a physical training gym in his backyard on the weekends.

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A closer look at what the various pitch types mean and how to approach pitch classification.

Several of the leading pitchers in this year’s postseason make their living with a cut fastball, most notably Roy Halladay and Mariano Rivera. The list of playoff pitchers who have the cutter as an important pitch in their arsenal, though, is long. It includes Cliff Lee, C.J. Wilson, and Tommy Hunter on the Rangers; Andy Pettitte and Phil Hughes on the Yankees; and Cole Hamels on the Phillies.

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May 13, 2008 12:00 am

Furcal En Fuego

0

Eric Seidman

The shape of the blistering-hot performance of the Dodgers shortstop.

Past experience can generate expectations. Certainly, when they signed Rafael Furcal to a three-year, $39 million deal following the 2005 season, the Dodgers believed that the former Braves leadoff batter would provide a significant spark to their offense. He did not disappoint in 2006, finishing 14th in NL MVP voting. Last year, however, a nagging ankle injury suffered in spring training kept him out of action for the first couple of weeks as well as the final weeks of the season; it also hindered his production level during the 138 games in which he played. A player whose modus operandi involves speed playing with an ankle injury is not a good combination.

Similarly, when Joe Torre signed on to manage the team this offseason, he was fresh off of managing a shortstop that happened to be the longtime face of the most prominent franchise in sports. He may have known his new shortstop could produce at an all-star level even, after that rough 2007. Suffice it to say he could not possibly have had any idea Furcal would be this productive.

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A new season brings a new batch of PITCHf/x data from which to learn.

"With me, being a hard thrower ... no matter what, they're defending that heater, man. So the more confidence I have to throw that [changeup] in any count, I'm going to throw it. I'm just going to. I don't care anymore. It's going to help me and I realize that."
--A.J. Burnett on his pitch selection. PITCHf/x has confidence in his fastball as well.

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