Welcome to baseball season! I always do a baseball-themed article around this time, and I found my topic after stumbling on this article recently: How accurate are umpires when calling balls and strikes?

From what I understand, since 2008, home plate umpires have been electronically monitored every game and given immediate feedback on their accuracy—i.e., the number of actual balls they called as strikes, and vice versa.

Using the aggregated data from the 2008–2013 seasons, the author observed that wrong calls were made 15 percent of the time (average of both rates combined), which, according to him, “is just too high.” He provided a table of umpires whose inaccuracy rate was 15 percent or higher—38 umpires out of approximately 80 (Tsk, tsk... that’s close to half of them.)

He also listed the top 10 most accurate umpires. Oops—I mean the 10 umpires who happened to have the lowest rates of wrong calls.

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