Pironkova pulled off a surprising upset to defeat Stephens. Pironkova entered the match as the decided underdog, with a 22% chance to win before the match started.
From the outset, Pironkova refused to go away, chipping away at Stephens's lead until Pironkova took their first lead during the middle stretches of the match. Stephens never recovered after losing the lead, and by the time the match ended, Pironkova had earned the upset.