Ostapenko pulled off the upset to defeat Halep. Ostapenko entered the match as the decided underdog, with a 26% chance to win before the match started.
From the outset, Ostapenko refused to go away, chipping away at Halep's lead until Ostapenko took their first lead at the end of the match. Halep never recovered after losing the lead, and by the time the match ended, Ostapenko had earned the upset.