Arizona Diamondbacks pulled off the upset to defeat Seattle Mariners. Arizona Diamondbacks entered the game as the underdog, with a 44% chance to win before the game started.
From the outset, Arizona Diamondbacks refused to go away, chipping away at Seattle Mariners's lead until Arizona Diamondbacks took their first lead toward the end of the game. Seattle Mariners never recovered after losing the lead, and by the time the game ended, Arizona Diamondbacks had earned the upset.