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THE BOOK--Playing The Percentages In Baseball

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Thursday, June 05, 2008

Mistake Pitches leading to homeruns

By Tangotiger, 02:06 PM

Eric looks at Santana:

His fastball velocity is, by all accounts, lower on home runs than anywhere else mentioned throughout this article.  His FA movement is very similar to that of those fouled off or missed.  His changeup has come in a bit straighter as evidenced by the decrease of close to two horizontal inches in movement. Here’s a location chart of where these gopher balls have come in...Notice anything?  Maybe that most, if not all, are right over the middle of the plate?  Pitches with decreased velocity and movement, coming in right over the middle of the plate are not necessarily surprising in the sense of leaving the yard off the bat.

The question that should be begged eagerly raised is what are the performance numbers for pitchers at the high end and low end of their fastball speeds (for the same pitcher)?  And the performance numbers on fastballs with little and much movement (for the same pitcher)?  And with what frequency do they reach those levels?

(12) Comments • 2008/06/09 • SabermetricsBall_Tracking
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June 05, 2008
Mistake Pitches leading to homeruns