N Osaka pulled off the upset to defeat Vandeweghe. N Osaka entered the match as the decided underdog, with a 28% chance to win before the match started.
From the outset, N Osaka refused to go away, chipping away at Vandeweghe's lead until N Osaka took their first lead toward the end of the match. Vandeweghe never recovered after losing the lead, and by the time the match ended, N Osaka had earned the upset.