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THE BOOK--Playing The Percentages In Baseball

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Thursday, January 20, 2011

More DH and fielding

By Tangotiger, 04:47 PM

Bill James said something intriguing:

Thus, if a DH made NO outs, then he incurs no responsibility to play defense.

Let’s backup how I give out fielding in WAR.  Every DH gets -2.25 wins per 700 PA of positional adjustment.  Every bad-fielding 1B gets -1.25 of positional adjustment and -1.00 wins of poor fielding.  Thus, whether Frank Thomas plays 1B or DH, he’ll get -2.25 wins (relative to average) in fielding+position.  That’s his “defense” score.

Bill however proposes something else.  And if I use his logic, then rather than -2.25 wins per 700 PA, I should do -2.25 wins per 460 outs. 

A pinch hitter, for example, in games where he gets a hit, will get 0 for his defense score.  But in a game where he makes an out, he gets an extra -.005 wins for his defense.  (In my case, he would get -.003 wins for his defense in either game.)

It is intriguing to think in this way.

(160) Comments • 2011/01/28 • SabermetricsLinear_Weights
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January 20, 2011
More DH and fielding