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THE BOOK--Playing The Percentages In Baseball

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Friday, January 23, 2009

Wood v Metal

By Tangotiger, 10:52 AM

So very cool:

The most obvious comparison method is average distance with wood vs. average distance with metal. The 30 wood bat homers averaged 373.1 feet, while the 230 metal bat homers that were measured averaged 408.1 feet (a few catwalk homers have not yet been analyzed). That’s a difference of 35 feet, or about 9.4 percent. A similar comparison of speed off the bat yields 100.6 mph for wood, and 108.9 mph for metal bats, a difference of 8.3 mph, or 8.3 percent.

The small sample size for wood bat homers means that there remains a lot of uncertainty in the “translation factor” from wood to metal bats, but knocking roughly 10 percent off the distance of a home run hit by a high school or college slugger can provide a good rough estimate of how far it might have gone with a wooden bat. For line drives that don’t clear the fence, knocking off about 8 percent of the speed off bat will give a reasonable wooden bat estimate.

(12) Comments • 2009/01/28 • SabermetricsMinors_CollegeTechnology
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January 23, 2009
Wood v Metal