The 2026 MLB postseason featured several walk-off wins driven by extra-inning drama and late rallies, most notably the Tampa Bay Rays' 12th-inning victory in World Series Game 4 via pinch-hitter Ben Williamson's bases-loaded single after Milwaukee's go-ahead homer. Earlier rounds included the Milwaukee Brewers' ninth-inning walk-off against the San Diego Padres in NLDS Game 2. These outcomes stemmed from tight pitching duels, bullpen fatigue in extended games, and home-field leverage at Tropicana Field, with the Rays' elimination-avoiding rally adding one to the postseason total before the Brewers closed out the series in five games. High-stakes matchups between top AL and NL seeds amplified opportunities for late heroics in best-of-seven formats.