Whom did Sára Bejlek defeat in the fourth round of the 2026 Cincinnati Open?

Sára Bejlek defeated Aryna Sabalenka in the fourth round of the 2026 Cincinnati Open.

Bejlek beat the tournament’s top seed 7–6, 6–4, producing one of the event’s biggest women’s singles upsets. The Czech player’s victory sent her into the quarterfinals and established her as one of the tournament’s surprise performers.

Her run continued with wins over several established players. Bejlek then defeated Madison Keys in the quarterfinals before losing to Coco Gauff in the semifinals, 6–4, 6–1.

Sabalenka entered Cincinnati as the No. 1 seed and was among the leading contenders for the title. That makes the result particularly memorable: Bejlek did not merely defeat a seeded player, but eliminated the highest-seeded player in the women’s draw. The match is distinct from the later semifinal, where Bejlek faced Gauff.