Toronto Maple Leafs pulled off the upset to defeat Boston Bruins. Toronto Maple Leafs entered the game as the underdog, with a 43% chance to win before the game started.
From the outset, Toronto Maple Leafs refused to go away, chipping away at Boston Bruins's lead until Toronto Maple Leafs 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, Toronto Maple Leafs had earned the upset.