Zheng Qinwen has equalled her best-ever performance at the US Open by advancing to the quarter-finals, continuing an extraordinary run through the tournament that has seen her recover from significant adversity.
The 23-year-old Chinese player defeated Poland's eighth-seeded Iga Swiatek 7-5 6-3 on Arthur Ashe Stadium, recovering from a 5-0 deficit in the opening set to claim victory. This marks the second consecutive match in which Zheng has mounted a remarkable comeback from such a position, having previously trailed American Madison Keys 5-0 in the deciding set of their third-round encounter on Saturday before winning seven games in succession to progress.
Zheng, the reigning Olympic champion and former world number four, had dropped outside the world's top 100 earlier in 2026 while struggling to rebuild her form following elbow surgery in July 2025. Her journey to this stage has been particularly noteworthy given that she entered the tournament as a qualifier. According to the US Open's official records, Zheng qualified for the main draw by defeating Elena Pridankina 6-4, 3-6, 6-0. She then won her opening match against fellow qualifier Kristina Liutova 4-6, 6-3, 6-1 in 2 hours and 28 minutes, before progressing through the subsequent rounds.
Against Swiatek, Zheng's tactical adjustments proved decisive. After finding herself in a seemingly hopeless position at 5-0 down in the first set, she won 13 of the next 16 games to seize control of the match. The second set remained competitive until the seventh game, when Zheng executed a powerful backhand return winner to secure a crucial break of serve. She broke again two games later to complete her victory.
The more matches I play, the more rhythm I have on court. People have asked me if I'm tired and when I arrived I was not tired at all. I felt really pumped for my match, trying to reach better levels here and enjoy this fantastic stadium.
This seventh consecutive victory in New York, achieved after progressing through three rounds of qualifying, is expected to propel Zheng back towards the brink of the top 50 in the world rankings.
How does Zheng's record against Swiatek compare?
Zheng's only previous victory against Swiatek came in the semi-finals of the 2024 Olympics, where she went on to claim singles gold in Paris. The fourth-round exit represents a disappointing conclusion to Swiatek's Grand Slam season, with a quarter-final appearance at the Australian Open marking her best result of 2026.
Swiatek's performance at the major tournaments has been inconsistent this year. She was eliminated in the fourth round of the French Open, while her defence of her Wimbledon title ended in the third round. According to the WTA's official report, Swiatek reached the fourth round at the US Open by defeating Marie Bouzkova 7-6(3), 7-6(3), with the WTA noting that this was her first match in which she won two tiebreaks in a single contest. The 25-year-old had entered the tournament in strong form, having won the WTA 1000 event in Toronto and reached the semi-finals in Cincinnati, and she had progressed through to round four without dropping a set before facing Zheng.
For the first time since 2021, Swiatek will end a calendar year without winning one of tennis's four major championships. She received treatment to her left thigh when leading 2-1 in the second set against Zheng but was unable to recover sufficiently to alter the match's trajectory.
What is the significance of Zheng's qualifier status?
Zheng's progression as a qualifier places her in rare company at the US Open. The most recent female qualifier to reach the quarter-finals at this event was Great Britain's Emma Raducanu, who went on to win the entire tournament in 2021. Zheng is not the first female qualifier to perform impressively at a Grand Slam in 2026, however. Poland's Maja Chwalinska, who began the French Open ranked 114th in the world, reached the final at Roland Garros before losing to Russian teenager Mirra Andreeva.
Zheng's comeback victories have demonstrated her mental resilience and tactical adaptability. Her ability to win from such significant deficits suggests she has regained the form that made her a top-four player and Olympic champion, despite the setback of her elbow injury and the subsequent ranking decline.
Who will Zheng face in the quarter-finals?
Zheng will discover her quarter-final opponent later on Monday when former US Open champion Naomi Osaka plays second seed Elena Rybakina in their fourth-round match. The winner of that encounter will advance to face Zheng in the next round.
Andreeva advances despite Potapova's injury
In another fourth-round match, French Open winner Mirra Andreeva reached the quarter-finals of the US Open for the first time in her career, defeating Anastasia Potapova 5-7 6-4 6-3 on Louis Armstrong Stadium.
The 19-year-old fifth seed was severely tested by Potapova until the 24th-seeded player sustained a knee injury in what proved to be the final game of their encounter. Potapova appeared to twist or hyperextend her knee while attempting to hit a ball on the run from the baseline. Andreeva quickly moved to check on her opponent, who was grounded on the court.
Russia-born Potapova, who represents Austria, returned to the court after receiving treatment but lost the remaining points in her service game, confirming her exit from the tournament.
Anastasia is my good friend and seeing what a battle we had and seeing her fall like that in the last game, it's not easy. I told her that she's been playing amazing and having one of her best seasons. I'm sure she'll come back even stronger - she's a warrior and an even better fighter than me.
Andreeva will face either American Coco Gauff or Iva Jovic in the quarter-finals, with their fourth-round match scheduled for Monday's night session.
