Isner pulled off the upset to defeat Raonic. Isner entered the match as the underdog, with a 40% chance to win before the match started.
From the outset, Isner refused to go away, chipping away at Raonic's lead until Isner took their first lead during the middle stretches of the match. Raonic did not go quietly, recapturing the lead for themselves, until Isner regained control for good toward the end of the match.