09 February 2011

Benefit of the Doubt: Mo and the Wide Zone

When we calculate the LWD differential for every 75 pitches called (the average number thrown in a 9 inning matchup), we find Wide Zone Mo at the top of the list. In regular season games from 2008-2010, Mariano Rivera's zone (heat map above) has saved the Yankees about 1.61 runs every 9 innings. This works out to about 0.16 runs per outing. Considering how seldom Rivera allows any runs at all, the runs saved by his strike zone are especially valuable.
Continue reading at Beyond the Box Score...

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