Zheng Stuns Swiatek as Rybakina Moves One Win From No. 1 | US Open 2026 Day 9 Roundup
US Open 2026 Day 9 Roundup
The US Open 2026 Day 9 roundup delivered two remarkable comebacks as Qinwen Zheng stunned Iga Swiatek and Mirra Andreeva battled past Anastasia Potapova, while Elena Rybakina produced a dominant victory over Naomi Osaka.
Zheng Completes Another Impossible Comeback
Zheng Qinwen defeated Iga Swiatek 7–5, 6–3 after recovering from 5–0 down in the opening set.
Remarkably, Zheng had performed an almost identical escape only two days earlier.
Madison Keys led her 5–0 in the deciding set of their third-round match and later held match point. Zheng responded by winning seven consecutive games and taking the match 1–6, 7–6(3), 7–5.
Against Swiatek, the danger arrived even sooner.
The six-time Grand Slam champion dominated the opening exchanges, breaking three times and racing to a 5–0 advantage. Zheng appeared unable to protect her serve or withstand Swiatek’s early pressure.
Then the match changed completely.
Zheng finally held for 1–5 and began striking with greater conviction. Swiatek tightened as the finish line approached, while Zheng attacked with the freedom of a player who had already escaped the same situation once.
Seven consecutive games transformed a seemingly lost set into a 7–5 victory.
Instead of recovering emotionally, Swiatek continued to struggle in the second. Zheng broke for a 3–1 advantage and resisted the pressure that followed, completing the upset after one hour and 56 minutes.
The sequence is extraordinary:
- Against Madison Keys: recovered from 0–5 in the third set
- Against Iga Swiatek: recovered from 0–5 in the first set
- Games won across those two comeback sequences: 14 consecutive games
Zheng entered the tournament ranked No. 121 and was required to win three qualifying matches just to reach the main draw. She has now recorded seven consecutive victories in New York and reached her third US Open quarterfinal.
The victory also revives memories of the 2024 Paris Olympics, where Zheng defeated Swiatek in the semifinals before winning the gold medal.
What looked like a difficult matchup on paper has become something more psychologically complicated. Swiatek knows Zheng can absorb her early dominance and still reverse the contest.
Zheng will next face Elena Rybakina.
Watch: Swiatek vs Zheng highlights
Rybakina Overwhelms Osaka and Closes In on No. 1
Elena Rybakina defeated Naomi Osaka 6–1, 6–4 in only 66 minutes.
The anticipated power battle barely developed into a contest during the opening set.
Rybakina immediately imposed depth and pace from both wings, striking through Osaka before the four-time major champion could establish her preferred court position.
The first set lasted only 22 minutes.
Osaka offered more resistance in the second, but she was also managing an Achilles problem that limited her ability to defend and recover between shots.
Rybakina never allowed the score to distract her. She maintained her aggressive positioning, protected the decisive break and closed out one of her most authoritative performances of the tournament.
Her numbers reflected that control:
- 29 winners
- 7 aces
- 17 unforced errors
- No sets dropped through four rounds
Rybakina has now completed the career set of quarterfinal appearances at all four Grand Slam tournaments. This is her first time reaching the last eight at the US Open.
The victory also places her one match away from a larger milestone.
If Rybakina defeats Zheng in the quarterfinals, she will secure the world No. 1 ranking for the first time—regardless of Aryna Sabalenka’s remaining results.
That makes Rybakina–Zheng more than a quarterfinal:
- Rybakina is playing for her first US Open semifinal.
- She is also playing for the world No. 1 ranking.
- Zheng is attempting to continue one of the most improbable qualifier runs in recent US Open history.
Watch: Osaka vs Rybakina highlights
Osaka’s Encouraging Run Ends
The scoreline was emphatic, but Osaka’s tournament should not be judged exclusively by its final match.
She reached the fourth round after consecutive three-set victories over Katerina Siniakova and Elise Mertens, showing resilience even when her tennis and physical condition became uncertain.
Against Rybakina, however, Osaka encountered an opponent who attacked with similar intentions but executed them more consistently.
Osaka could not use her movement to extend enough points, while Rybakina repeatedly took control with the first powerful groundstroke.
The defeat extends Osaka’s wait for another Grand Slam title, but her response afterward reflected a broader perspective. She acknowledged that motherhood and life beyond tennis have changed how she processes losses while reaffirming her determination to continue improving.
Her US Open campaign contained enough positive signs to confirm that she remains capable of challenging strong opponents.
The question is no longer whether Osaka can return to the second week of majors. It is whether her body and consistency can carry her through the elite opponents waiting there.
Andreeva Survives Potapova and an Emotional Finish
Mirra Andreeva defeated Anastasia Potapova 5–7, 6–4, 6–3 after two hours and 27 minutes.
Potapova entered with confidence after eliminating 2025 finalist Amanda Anisimova and carried that momentum into the opening set.
Andreeva struggled to control her errors and surrendered the first 7–5. She gradually found greater depth in the second, extending exchanges and forcing Potapova to defend more frequently.
After taking the second set 6–4, Andreeva established a decisive advantage in the third.
The match then took an emotional turn.
With Potapova serving at 3–5, she fell while chasing an Andreeva forehand and injured her left knee. Andreeva immediately crossed the court, helped her limping opponent to the chair and called for ice.
Potapova continued despite the injury, but Andreeva completed the victory with a backhand winner.
The moment showed competitive maturity beyond the result. Andreeva remained focused enough to finish the match while showing immediate concern for an injured opponent and friend.
The victory sends the 19-year-old into her first US Open quarterfinal. It is also her second comeback win over Potapova this season following the Linz final.
Andreeva has now reached at least the quarterfinals at three different majors and continues to demonstrate that her success is no longer simply precocious.
She will face Coco Gauff next.
Watch: Andreeva vs Potapova highlights
Gauff Ends Jovic’s Breakthrough Run
Coco Gauff defeated Iva Jovic 6–1, 6–4 in an all-American fourth-round encounter.
Jovic arrived after surviving a three-hour battle against Alexandra Eala, but Gauff presented a completely different physical and tactical challenge.
The former champion dominated the opening set with superior movement and defensive coverage. Jovic frequently found herself required to hit an additional ball even after constructing what appeared to be a winning position.
Gauff took the opener 6–1 and moved within sight of another routine straight-sets victory.
Jovic competed more effectively in the second, finding greater depth and taking the ball earlier. She forced Gauff to work considerably harder but could not produce the sustained pressure required to force a deciding set.
Gauff closed out the match 6–4 and reached the 12th Grand Slam quarterfinal of her career.
She has not dropped a set in New York:
- Zeynep Sonmez: 6–3, 6–4
- Paula Badosa: 6–4, 7–6(5)
- Cristina Bucșa: 6–3, 6–4
- Iva Jovic: 6–1, 6–4
Jovic’s defeat does not diminish her progress.
The 18-year-old reached the US Open fourth round for the first time, survived Eala on Arthur Ashe Stadium and recorded her third appearance in the second week of a major this season.
Her next step is converting those appearances into victories against established Grand Slam champions.
Watch: Jovic vs Gauff highlights
Gauff and Andreeva Set Up a Champion’s Quarterfinal
Gauff against Andreeva brings together the champions of two of the season’s four majors.
Andreeva won Roland Garros and Wimbledon, while Gauff enters as a former US Open champion with considerably more experience on Arthur Ashe Stadium.
The matchup presents a fascinating contrast.
Gauff owns the superior defensive movement and can turn apparently lost rallies into neutral exchanges. Andreeva offers greater tactical variation and has become increasingly comfortable changing direction before opponents establish control.
Neither player has enjoyed an entirely straightforward season, but both have produced their strongest tennis when Grand Slam pressure intensified.
Andreeva will need to recover physically after spending two hours and 27 minutes against Potapova. Gauff completed her victory in straight sets and should enter the quarterfinal fresher.
The American will start as the favourite, but Andreeva has already demonstrated that age and occasion do not intimidate her.
Krawczyk and Hunter Fall in Doubles
Top seeds Katerina Siniakova and Taylor Townsend defeated Storm Hunter and Desirae Krawczyk 7–6(8), 6–4 in the women’s doubles third round.
Hunter and Krawczyk pushed the tournament favourites through an exceptionally tight opening set but could not convert their opportunities in the tiebreak.
Losing it 10–8 left little margin in the second. Siniakova and Townsend secured the necessary break and closed the match in straight sets.
The defeat ends Krawczyk’s women’s doubles campaign after she and Hunter won their first two matches.
What the US Open 2026 Day 9 Roundup Told Us
Zheng’s repeated recoveries can no longer be dismissed as isolated escapes.
Coming back from 5–0 against Keys was extraordinary. Repeating it in the next match against Swiatek suggests something more significant: opponents are beginning to feel the weight of finishing her once she starts resisting.
Rybakina provided the opposite story.
She required no comeback and allowed no prolonged uncertainty. Her performance against Osaka was clinical, efficient and fully consistent with a player approaching the world No. 1 ranking.
Their quarterfinal therefore brings together two contrasting forms of pressure:
- Rybakina’s relentless first-strike dominance
- Zheng’s growing reputation as a player who refuses to accept that a match is lost
Andreeva demonstrated resilience and compassion during an emotionally difficult victory, while Gauff produced the day’s cleanest passage into the quarterfinals.
The completed women’s quarterfinal lineup is:
- Aryna Sabalenka vs. Linda Noskova
- Jessica Pegula vs. Emma Navarro
- Elena Rybakina vs. Zheng Qinwen
- Coco Gauff vs. Mirra Andreeva
Three of those matches feature Grand Slam champions on both sides.
The fourth—Pegula against Navarro—guarantees an American semifinalist.