SINGAPORE — Agnieszka Radwanska beat fourth-seeded Petra Kvitova 6-2, 4-6, 6-3 Sunday at the WTA Finals to clinch the biggest title of her career.
The fifth-seeded Pole's previous best at the season-ending championship was reaching the semifinals in 2012 and 2014.
"Definitely I didn't expect it at all," a tearful Radwanska said.
Radwanska is the first player to win the tournament after a losing 1-2 record in the round-robin stage — and the first Polish winner.
"I lost first two matches, but it's not like I was playing bad," Radwanska said. "Then I think I got used to conditions, used to the surface.