Pittsburgh Pirates pulled off the upset to defeat Cleveland Guardians. Pittsburgh Pirates entered the game as the underdog, with a 43% chance to win before the game started.
From the outset, Pittsburgh Pirates refused to go away, chipping away at Cleveland Guardians's lead until Pittsburgh Pirates took their first lead toward the end of the game. Cleveland Guardians never recovered after losing the lead, and by the time the game ended, Pittsburgh Pirates had earned the upset.