Pennetta pulled off the upset to defeat Halep. Pennetta entered the match as the decided underdog, with a 26% chance to win before the match started.
From the outset, Pennetta refused to go away, chipping away at Halep's lead until Pennetta took their first lead during the middle stretches of the match. Halep did not go quietly, recapturing the lead for themselves, until Pennetta regained control for good toward the end of the match.