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