Two teams in baseball history have managed to come back from 12-run deficits to win a game. On June 18, 1911, the Detroit Tigers found themselves being trounced by the visiting Chicago White Sox, 13-1. They managed to score four runs in the fifth and three in the sixth, but Chicago countered with two runs of their own in the seventh. In the eighth, Detroit used five singles and two walks to cut Chicago’s lead to 15-13. They completed their comeback in the final frame when Ty Cobb plated the tying runs with a two-run single, his fifth hit of the day, and was driven in on a double by Sam Crawford.
Connie Mack’s Philadelphia Athletics also managed a 12-run comeback on June 15, 1925. Down 15-3, Philly scratched out only a single run in the seventh, but proceeded to clobber Cleveland Indians‘ pitching for 13 runs in the eighth. Cleveland manager Tris Speaker‘s four pitchers, including ace George Uhle, could not stem the tide, and the A’s went on to win 17-15.