Pete Palmer, the sabermetrician and author of The Hidden Game of Baseball, once calculated that the average difference in baseball due to skill is about one run a game, while the average difference due to luck is about four runs a game. Over a long season the luck evens out, and the skill shines through. But in a series of three out of five, or even four out of seven, anything can happen. In a five-game series, the worst team in baseball will beat the best about 15 percent of the time; the Devil Rays have a prayer against the Yankees. Baseball science may still give a team a slight edge, but
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