Nikola Bartůňková defeats Aryna Sabalenka at China Open

Nikola Bartůňková defeated world number two Aryna Sabalenka 6:4, 6:3 in the third round of the China Open on October 4, 2026, marking the biggest victory of the 20-year-old Czech player’s career. It was reported that the straight-sets win made Bartůňková the third Czech player to defeat a top-two opponent at the event, following Barbora Strýcová in 2017 and Karolína Muchová in 2024.

Bartůňková Defends Serve to Upset Champion

Bartůňková entered the match as a significant underdog against the four-time Grand Slam champion. It was noted that the Czech player successfully defended all five break points she faced in a single game and never dropped her serve throughout the 95-minute encounter. It was added that Bartůňková achieved the win despite a first-serve success rate sitting below 50 percent, which the player attributed to shifting temperatures and wind conditions across the court halves.

Bartůňková Avenges Previous Defeat Against Sabalenka

The victory avenged a painful defeat earlier in the season. It was reported that Bartůňková previously held a 6:2, 4:0 lead against Sabalenka on grass in Berlin in June before losing in three sets. In contrast to that summer meeting where Sabalenka praised the Czech player, it was noted that the Belarusian star expressed frustration with the conditions in Beijing and exited the court without stopping to chat during the post-match handshake.

Context for the Beijing Draw

The exit of Sabalenka follows the first-round elimination of world number one Elena Rybakina, marking the first time since 2015 that neither the top nor second-ranked player reached the round of 16 at the China Open. It was confirmed that fellow Czech players Karolína Muchová and Linda Nosková also advanced to the fourth round, with Muchová overcoming Ekaterina Samsonova in three sets and Nosková defeating Viktorija Golubicová.

Upcoming Fourth-Round Fixture in Beijing

Bartůňková advances to face Austria’s Sinja Kraus in the round of 16. It was reported that the Czech player intended to shift her immediate focus to her doubles campaign alongside Poland’s Maja Chwalińska rather than staging an extensive celebration for her singles milestone.