NEW YORK, United States, September 9, 2026: Coco Gauff spent the opening set chasing Mirra Andreeva. By the end of the night, Andreeva was the one trying to stop Gauff from running away with the match.
The No. 4 seed recovered from a one-sided start to defeat French Open champion Mirra Andreeva 2-6, 7-6(7), 6-2 in the US Open quarterfinals at Arthur Ashe Stadium, extending her New York run into the semifinals after a match that changed character twice before it finally belonged to the American.
Andreeva controlled the first set with cleaner timing and greater confidence, then pushed Gauff through a second-set tiebreak that reached 9-7 before the American finally escaped. Once Gauff survived that moment, the balance shifted sharply. She won the deciding set 6-2, attacked with greater freedom and turned what had looked like Andreeva’s night into another home-court comeback.
The result sends Gauff into a semifinal against Elena Rybakina, who earlier defeated Zheng Qinwen 3-6, 6-1, 6-4 and secured the world No. 1 ranking in the process. The official WTA US Open tournament page lists Gauff among the final contenders in a women’s draw that has kept most of its biggest names alive deep into the second week.
For readers following the entire tournament, The Sports Encounter’s US Open 2026 curtain-raiser remains the main hub for schedules, contenders, context and the major storylines that shaped New York before the first ball was struck.
Andreeva Took the First Set Before Gauff Could Settle
The opening set belonged almost entirely to Andreeva.
She entered the quarterfinal with the confidence of a reigning Grand Slam champion and immediately played like one. The 19-year-old had already shown throughout this tournament that her summer dip after winning Roland Garros was beginning to disappear, and her first-set performance against Gauff looked like the clearest evidence yet.
Andreeva moved the ball early, changed direction without hesitation and prevented Gauff from establishing the defensive rhythm that usually allows her to build into rallies.
The 6-2 scoreline was not an accident.
Gauff had been one of the cleanest players in the women’s draw before the quarterfinal, reaching the last eight after beating Iva Jovic in straight sets. She had also carried strong hard-court form into New York after winning Cincinnati, where her movement, serving and ability to control big points had all looked sharper.
Andreeva disrupted that rhythm immediately.
The Second Set Became the Match
The entire quarterfinal turned on one set.
Gauff needed the second simply to remain alive. Andreeva needed it to complete what was beginning to look like the most important hard-court win of her season.
Neither player gave the other enough space to relax.
Coco Gauff cannot hear the negativity. 🔇 pic.twitter.com/P78MEm0KlD
— US Open Tennis (@usopen) September 9, 2026
The pressure built game by game until the set reached a tiebreak, and even then neither could create separation. Andreeva pushed the breaker all the way to 7-7, forcing Gauff to keep solving one more problem before she could even think about a deciding set.
Gauff eventually won the tiebreak 9-7.
That two-point margin changed everything.
Andreeva had been two points away from the semifinals. Instead, she had to start again from zero against a player whose confidence had just been rebuilt in real time.
The psychological shift was immediate.
Gauff’s Experience Took Over in the Decider
The third set showed why Gauff’s major-match experience matters.
The 2023 US Open champion has already spent years playing under the particular pressure that comes with being the leading American woman in New York. Earlier in the tournament, she said reaching Grand Slam quarterfinals no longer feels unfamiliar because she has put herself in that position so many times.
That comfort became visible once she won the second-set tiebreak.
Instead of playing like someone who had just escaped elimination, Gauff played like someone who had been given a second chance and understood exactly what to do with it.
She took the third set 6-2.
Andreeva, by contrast, could not recreate the control that had made the first set so convincing.
The same contrast appeared earlier this summer when Rybakina came from behind to beat Gauff in Toronto. That match was another reminder that momentum between elite players can change very quickly once one side stops controlling the first meaningful strike.
This time, Gauff was the player who made the adjustment.
Andreeva’s US Open Still Marks Another Step Forward
The defeat should not erase what Mirra Andreeva accomplished in New York.
This was her first US Open quarterfinal.
She arrived at Flushing Meadows carrying the weight that followed her breakthrough at Roland Garros, where Andreeva became a Grand Slam champion at 19.
That title changed the expectations around her almost overnight.
The first months afterward were difficult. Andreeva admitted before this quarterfinal that she had struggled with the feeling that winning a major meant she now had to win every match she played. A conversation with her sports psychologist helped change that mindset, and the results in New York reflected a calmer approach. The official US Open site detailed that mental reset before the match.
She had already defeated Janice Tjen, Nikola Bartunkova and Anastasia Potapova during this run, including a three-set recovery against Potapova in the fourth round.
Against Gauff, she came within a tiebreak of reaching the semifinals.
That is not a failed tournament.
It is another sign that Andreeva’s Grand Slam title was not an isolated breakthrough.
Gauff’s Hard-Court Summer Keeps Growing
Gauff’s semifinal place also extends one of the strongest stretches of her season.
She reached the Wimbledon semifinals, then arrived in North America with questions around whether she could convert that form into another serious US Open run.
The answer has become clearer tournament by tournament.
Her Cincinnati title changed the tone of the summer. The Sports Encounter’s analysis of her Cincinnati victory argued that the timing of that title mattered as much as the trophy because it gave her confidence immediately before the final Grand Slam of the year.
She has carried that momentum into New York.
Earlier rounds showed control.
This quarterfinal showed resilience.
Those are different qualities, and major champions usually need both.
The Women’s Draw Is Becoming More Difficult, Not Less
Gauff’s reward for surviving Andreeva is not a softer semifinal.
Elena Rybakina awaits.
Rybakina defeated Zheng Qinwen in three sets earlier on Wednesday and, with that victory, guaranteed that she will become the new world No. 1 after the tournament. The result also removed the ranking scenario that had kept Gauff mathematically involved in the race for the top spot.
Coco Gauff is looking forward to facing the new world No.1 🗣️ pic.twitter.com/o3yASeB88v
— US Open Tennis (@usopen) September 9, 2026
The Sports Encounter’s breakdown of the WTA No. 1 race had already identified Rybakina as the player controlling the ranking equation.
Now that equation is settled.
The tennis is not.
Rybakina beat Gauff in Toronto last month after losing the first set, taking the semifinal 5-7, 6-2, 6-2. That result gives the US Open semifinal an obvious tactical reference point because Gauff already knows what happens when Rybakina starts controlling the first strike of the rally.
Gauff also knows she has improved since then.
Another American Semifinal Adds to New York’s Home Story
The American presence in the women’s draw has become one of the strongest themes of this US Open.
Jessica Pegula has already reached the semifinals after coming from behind to beat Emma Navarro.
Gauff now joins her.
That gives the United States two women in the final four, while the men’s draw has also carried a strong American presence deep into the tournament.
The official US Open site noted that six Americans reached the quarterfinals across the men’s and women’s singles draws, the highest total since 2002. That concentration has given Arthur Ashe Stadium a very different emotional atmosphere during the second week.
Gauff feels that more than most.
She won this tournament in 2023 and remains the most recent American woman to lift the US Open singles trophy. The official tournament site confirmed Gauff as the last American women’s singles champion in New York.
That history does not make the pressure smaller.
It makes the expectation more familiar.
Why This Win Matters More Than a Routine Quarterfinal
Gauff’s victory matters because it showed something different from the matches that brought her here.
She had entered the quarterfinal without dropping a set.
Andreeva changed that immediately.
For the first time in this US Open, Gauff had to respond after being comprehensively outplayed for a full set. She then had to win a tiebreak in which the match could have ended with two lost points.
After that, she had to prove the escape was worth something.
The 6-2 deciding set supplied the answer.
That is why the quarterfinal feels more important than the scoreline alone.
It was not another clean step through the draw.
It was the night Gauff had to lose control, survive the danger and then rebuild the match from the middle.
That is the version of Coco Gauff Elena Rybakina will face in the semifinals.
Follow The Sports Encounter’s tennis coverage and our US Open 2026 coverage for continuing reports, match analysis and the road to the singles finals in New York.
