Buffalo Sabres pulled off the upset to defeat Calgary Flames. Buffalo Sabres entered the game as the underdog, with a 32% chance to win before the game started.
From the outset, Buffalo Sabres refused to go away, chipping away at Calgary Flames's lead until Buffalo Sabres took their first lead toward the end of the game. Calgary Flames did not go quietly, recapturing the lead for themselves, until Buffalo Sabres regained control for good at the very end of the game.