Thursday, January 20, 2011
More DH and fielding
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.


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