Arizona Diamondbacks pulled off the upset to defeat Houston Astros. Arizona Diamondbacks entered the game as the decided underdog, with a 28% chance to win before the game started.
From the outset, Arizona Diamondbacks refused to go away, chipping away at Houston Astros's lead until Arizona Diamondbacks took their first lead at the end of the game. Houston Astros never recovered after losing the lead, and by the time the game ended, Arizona Diamondbacks had earned the upset.