Montreal Canadiens pulled off the upset to defeat Calgary Flames. Montreal Canadiens entered the game as the underdog, with a 45% chance to win before the game started.
From the outset, Montreal Canadiens refused to go away, chipping away at Calgary Flames's lead until Montreal Canadiens took their first lead at the very end of the game. Calgary Flames never recovered after losing the lead, and by the time the game ended, Montreal Canadiens had earned the upset.