Ottawa Senators pulled off the upset to defeat Colorado Avalanche. Ottawa Senators entered the game as the underdog, with a 40% chance to win before the game started.
From the outset, Ottawa Senators refused to go away, chipping away at Colorado Avalanche's lead until Ottawa Senators took their first lead during the middle stretches of the game. Colorado Avalanche never recovered after losing the lead, and by the time the game ended, Ottawa Senators had earned the upset.