The Most Important Play of Game One
Neither the Red Sox’ four-run margin of victory, nor the ease with which Craig Kimbrel finished off the ninth, really do justice to the intensity of Game One of the World Series. Despite the final score, only 10 of the game’s 80 plays took place with a run differential greater than two runs. There were 11 high-leverage plays overall, and the average leverage index was 1.14, which is higher than normal. It was a game with important, exciting moments — and none were more important than certain moments of the seventh inning.
In terms purely of win expectancy, Eduardo Nunez’s three-run homer in the bottom of the seventh off Alex Wood was the game’s top play. When Nunez stepped to the plate with runners on first and second, two outs, and a one-run lead, the Red Sox’ chances of winning the game were 77% — which is to say, good but far from from certain. After his three-run homer — which came off the bat with a launch angle just under 20 degrees but managed to clear the Green Monster, anyway — Boston’s win probability increased to 96%. The game was pretty much over.




