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Wednesday, December 15, 2010
Matt and batted balls, part 2 (a thread about baseball)
There’s tons of information here. I’ll just point out this and get back to the article tomorrow:
The .025 correlation year to year on line-drive BABIP is particularly surprising because it is at odds with previous research. Six years ago, Mitchel Lichtman found that line-drive BABIP was persistent for pitchers, but look at the line-drive BABIP net of team line-drive BABIP and this unravels. This is a mixture of team defense adjustment and official scorer adjustment, but it un-teaches something important about pitcher BABIP that many of us thought we knew.
Except MGL also provided the correlation for the team-switchers, and the correlation for the 107 team-switching pitchers had an r = .365 for BABIP on OF line drives. I don’t think we’re being untaught anything yet.
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Anyway, Matt’s data is too overwhelming to analyze while working at the office. I need time. Maybe the smarty-pants out there are quicker on the draw here and can interpret some of this data.
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