What Umpires Get Wrong

Brayden King and Jerry Kim:

In research soon to be published in the journal Management Science, we studied umpires’ strike-zone calls using pitch-location data compiled by the high-speed cameras introduced by Major League Baseball several years ago in an effort to measure, monitor and reward umpires’ accuracy. After analyzing more than 700,000 pitches thrown during the 2008 and 2009 seasons, we found that umpires frequently made errors behind the plate — about 14 percent of non-swinging pitches were called erroneously.

What I want to know is how come the umps always have it in for the Yankees?

Tuesday, 1 April 2014

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