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THE BOOK--Playing The Percentages In Baseball

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Thursday, September 03, 2009

Minor league pitcher says: It’s because of the random variation of my BABIP!

By Tangotiger, 08:25 AM

Shawn Haviland said:

The second half of the year my strikeout-to-walk ratio has stayed around 3 to 1 (7.5 to 2.8) but my ERA and WHIP have shot up, despite the fact that I feel like I have executed my pitches better in the second half of the season than the first half. What happened, you might ask? The answer here seems to be that my BABIP has gone up almost every month all the way up to over .360 in August.

And you hear about this ALL the time from pro players, that even when they are in a slump, they say they are simply going to work through it.  They keep reiterating that they’ve done nothing differently, and they will continue to keep playing the same way they have.  They implicitly accept what Haviland here has explicitly shown: there’s random variation around some unknown true mean.  Or, as the layman says it better terms: sh!t happens.

(6) Comments • 2009/09/04 • SabermetricsMinors_CollegePitchers
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September 03, 2009
Minor league pitcher says: It’s because of the random variation of my BABIP!