Seattle Seahawks pulled off the upset to defeat San Francisco 49ers. Seattle Seahawks entered the game as the underdog, with a 44% chance to win before the game started.
From the outset, Seattle Seahawks refused to go away, chipping away at San Francisco 49ers's lead until Seattle Seahawks took their first lead during the middle stretches of the game. San Francisco 49ers never recovered after losing the lead, and by the time the game ended, Seattle Seahawks had earned the upset.