Dutch challenger Kiki Bertens profited from a third-set collapse from Simona Halep to score the biggest win of her career Sunday, beating the world number one 2-6, 7-6 (8/6), 6-2 in the Cincinnati final.

Halep, who won the Montreal trophy a week ago and came into the final on a nine-match winning streak, ran out of reserves and was unable to stop the mounting Bertens momentum. "I've lost three finals here, but maybe I will able to win one at this tournament because I love to play here," said Halep, who fell to Serena Williams in the 2015 final of the hardcourt US Open tuneup and to Garbine Muguruza in the title match last year.