Thursday, April 07, 2005
Click wants to know if a speedy runner on first base actually influences the batter-pitcher outcome. Looking at last season's numbers with a runner on first and with second base unoccupied and available to steal, and divided into baserunner classes ("major threat" (to steal), "minor threat," and "slow as evolution") it turns out that hitters outperformed their seasonal averages by a greater margin with the faster runners on first base than with the slower ones aboard. The difference is not enormous (about .030 OPS), but it is persistent, showing up in each season that Click examined. Says Click:
So the next time you're listening to a ballgame and the announcer claims a hit is the result of a pitcher focusing too much on a basestealer instead of the batter, it's not entirely untrue.