Pittsburgh Pirates pulled off the upset to defeat New York Mets. Pittsburgh Pirates entered the game as the underdog, with a 33% chance to win before the game started.
From the outset, Pittsburgh Pirates refused to go away, chipping away at New York Mets's lead until Pittsburgh Pirates took their first lead at the end of the game. New York Mets never recovered after losing the lead, and by the time the game ended, Pittsburgh Pirates had earned the upset.