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China Open 2026 Day 7: Bartunkova Keeps Walking After Sabalenka Upset

By: Jun Pasion |
 October 6, 2026

Nikola Bartunkova already produced one of the shocks of the China Open when she knocked out Aryna Sabalenka.

Then came a different question.

What would she do next?

Bartunkova supplied the answer Tuesday.

The 20-year-old Czech defeated qualifier Sinja Kraus 6–0, 4–6, 6–3 to reach the first WTA 1000 quarterfinal of her career.

The Sabalenka upset was the explosion.

This was the validation.

And Bartunkova is still walking through the draw she helped break open.

Bartunkova Turns the Sabalenka Upset Into a Run

Bartunkova could hardly have started faster against Kraus.

She swept through the opening set 6–0 before the match changed direction. Kraus took the second 6–4 and forced Bartunkova to prove that her Beijing story had another chapter in it.

She did.

Bartunkova recovered to take the deciding set 6–3 and book her place in the quarterfinals.

That matters beyond one result.

Eighteen months ago, Bartunkova was ranked No. 517. She arrived at this stage of Beijing as World No. 34. Now she owns her first WTA 1000 quarterfinal appearance.

Beating Sabalenka created a moment.

Winning again created a run.

Her reward is another Czech opponent—and a very different kind of test.

Karolina Muchova is waiting.

Muchova Needed Nine Match Points to Escape Osaka

If Bartunkova had to prove she could handle the match after a giant upset, Muchova had to prove she could survive a match that refused to end.

Muchova defeated Naomi Osaka 7–5, 1–6, 7–6(7) in 2 hours and 52 minutes.

It took her nine match points.

Osaka saved eight of them.

Muchova had also trailed by a break in both the first and third sets before eventually finishing the match with a backhand volley.

Now Beijing gets an all-Czech quarterfinal:

Karolina Muchova vs. Nikola Bartunkova.

One arrives after surviving the match of the day.

The other arrives after proving the biggest win of her tournament wasn’t the end of her story.

Watch Muchova vs Osaka highlights

Mirra Andreeva Moves Without Drama

Elsewhere in the draw, Mirra Andreeva did something increasingly valuable in this China Open:

She avoided the chaos.

Andreeva defeated Daria Snigur 6–2, 6–2, advancing to another WTA 1000 quarterfinal without the three-set escape acts happening elsewhere in Beijing.

She now faces Ekaterina Alexandrova.

Alexandrova was just as decisive Tuesday, eliminating No. 5 seed Linda Noskova 6–2, 6–2.

That sets up another quarterfinal between two players arriving from almost identical scorelines:

Ekaterina Alexandrova vs. Mirra Andreeva.

Andreeva may be the higher seed.

Alexandrova just removed one of the players seeded above her.

The open draw isn’t handing anyone a free road.

Watch Snigur vs Andreeva highlights
YouTube video player

Osaka Saves Eight Match Points — But Beijing Run Ends

For Naomi Osaka, the China Open ended about as narrowly as possible.

After dropping the opening set to Muchova, Osaka stormed through the second 6–1.

The deciding set became a battle of survival.

Eight times, Osaka faced match point.

Eight times, she stayed alive.

The ninth finally ended it.

Muchova’s 7–5, 1–6, 7–6(7) victory sends Osaka out before the quarterfinals and gives Muchova the physically demanding route into her meeting with Bartunkova.

The Fire-Side Upset Has Been Validated

Beijing once appeared to be building toward a possible collision between its top two seeds.

That architecture is gone.

World No. 1 Elena Rybakina was eliminated by Alina Charaeva.

World No. 2 Aryna Sabalenka was eliminated by Bartunkova.

Tuesday didn’t change either result.

It changed what one of them means.

Bartunkova didn’t disappear after beating Sabalenka. She returned, won again and reached the quarterfinals.

The Fire-side shockwave is still moving through Beijing.

Now the Ice side gets its test.

Charaeva Broke the Ice. Zheng Qinwen Is Next.

Alina Charaeva has already done something Bartunkova knows rather well.

She knocked out one of the tournament’s giants.

Charaeva defeated Rybakina 3–6, 6–4, 6–3, spoiling Rybakina’s first match as World No. 1.

Then Charaeva backed up the upset by beating Sonay Kartal 6–4, 6–1.

Now comes the harder validation test.

Zheng Qinwen.

Zheng has survived three matches in Beijing.

All three went to deciding sets.

Bartunkova has already transformed the Sabalenka upset into a quarterfinal run.

On Wednesday, we find out whether Rybakina’s conqueror can do the same.

The former projected final is gone.

But the two women who destroyed it are still shaping Beijing from opposite sides of the draw.

Complete China Open Day 7 Results

Tuesday completed the first four Round-of-16 matches. No women’s singles match ended by retirement, walkover or withdrawal.

Mirra Andreeva (4) def. Daria Snigur
6–2, 6–2

Ekaterina Alexandrova (19) def. Linda Noskova (5)
6–2, 6–2

Karolina Muchova (7) def. Naomi Osaka (12)
7–5, 1–6, 7–6(7)

Nikola Bartunkova (26) def. Sinja Kraus
6–0, 4–6, 6–3

What’s Next

Two quarterfinals are already set:

Ekaterina Alexandrova (19) vs. Mirra Andreeva (4)
Two straight-sets winners collide, with Andreeva facing her first seeded opponent of this Beijing run.

Karolina Muchova (7) vs. Nikola Bartunkova (26)
Muchova brings experience and the aftermath of a 2-hour, 52-minute battle. Bartunkova brings the momentum of a run that began with Sabalenka.

Wednesday completes the other half of the quarterfinal field:

Alina Charaeva vs. Zheng Qinwen
Can Rybakina’s conqueror keep walking?

Ann Li vs. Elina Svitolina

Coco Gauff vs. Elise Mertens

Iva Jovic vs. Iga Swiatek

And Beijing now has an intriguing symmetry.

Sabalenka’s conqueror has already survived the match after the upset.

Rybakina’s conqueror gets her biggest test next.

One shockwave has reached the quarterfinals.

Now we wait for the other.

China Open 2026 — Related Stories

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