San Francisco Giants pulled off the upset to defeat Washington Nationals. San Francisco Giants entered the game as the underdog, with a 37% chance to win before the game started.
From the outset, San Francisco Giants refused to go away, chipping away at Washington Nationals's lead until San Francisco Giants took their first lead at the end of the game. Washington Nationals never recovered after losing the lead, and by the time the game ended, San Francisco Giants had earned the upset.