Stephens pulled off the upset to defeat Muguruza. Stephens entered the match as the underdog, with a 41% chance to win before the match started.
From the outset, Stephens refused to go away, chipping away at Muguruza's lead until Stephens took their first lead during the middle stretches of the match. Muguruza never recovered after losing the lead, and by the time the match ended, Stephens had earned the upset.