Colorado Avalanche pulled off the upset to defeat Boston Bruins. Colorado Avalanche entered the game as the underdog, with a 42% chance to win before the game started.
From the outset, Colorado Avalanche refused to go away, chipping away at Boston Bruins's lead until Colorado Avalanche took their first lead during the middle stretches of the game. Boston Bruins never recovered after losing the lead, and by the time the game ended, Colorado Avalanche had earned the upset.