With the Tigers down 3–0 and facing elimination against the Athletics in Game 4 of the American League Division Series (ALDS), Peralta connected for a three-run home run in the fifth inning. It was "perhaps the biggest swing of the playoffs for the Tigers so far", surmised sportswriter Noah Trister. The Tigers eventually won the ALDS but lost to the Red Sox in the American League Championship Series. In ten playoff games, Peralta batted .333 with four doubles, one home run and six runs batted in.