US Open 2026: Alcaraz, Tiafoe, Sabalenka and Noskova Reshape the Quarterfinal Race

NEW YORK: The US Open entered its second week with a men’s draw losing established champions at remarkable speed and a women’s tournament beginning to concentrate around players carrying very different forms of pressure.

Carlos Alcaraz returned to the quarterfinals with another controlled straight-sets victory. Frances Tiafoe removed 2021 champion Daniil Medvedev. Alex Michelsen reached the first Grand Slam quarterfinal of his career. On the women’s side, Aryna Sabalenka moved three victories from a historic New York three-peat, while reigning Wimbledon champion Linda Noskova survived one of Sunday’s toughest matches to set up a heavyweight quarterfinal.

Those results have changed more than the list of surviving players.

The men’s championship is becoming increasingly defined by opportunity. Novak Djokovic, Taylor Fritz, Felix Auger-Aliassime, Alex de Minaur, Andrey Rublev and now Medvedev are gone. Alcaraz, meanwhile, is playing his first singles tournament in months and increasingly looks less like a player returning from injury and more like the man everyone else may have to remove.

The women’s draw remains more concentrated. Sabalenka is still defending two consecutive titles. Noskova has carried her Wimbledon breakthrough directly into another major second week, while Coco Gauff, Iga Swiatek, Elena Rybakina, Naomi Osaka, Mirra Andreeva and Jessica Pegula remain part of a title race that could become even more compressed over the next 24 hours.

For readers following the tournament from its disrupted opening week, The Sports Encounter’s full analysis of the early rain, major exits and changing title picture showed how quickly the original hierarchy began to unravel.

Sunday accelerated that process.

Coverage cutoff: This article includes completed men’s and women’s singles action available through the completion of Frances Tiafoe’s fourth-round victory over Daniil Medvedev on September 6. Matches later in Sunday’s night session are not presented as completed results.

US Open 2026: Major Completed Round-of-16 Results

Event	Winner	Opponent	Score	Why It Matters
Men’s Singles R4	Carlos Alcaraz	Tommy Paul	6-4, 6-3, 6-4	Defending champion reaches fifth US Open quarterfinal and extends Grand Slam winning streak to 18
Men’s Singles R4	Frances Tiafoe	Daniil Medvedev	7-6(1), 6-4, 7-6(6)	Former champion eliminated as Tiafoe reaches another US Open quarterfinal
Men’s Singles R4	Alex Michelsen	Tomas Martin Etcheverry	7-6(6), 6-4, 6-4	Michelsen reaches first Grand Slam quarterfinal
Women’s Singles R4	Aryna Sabalenka	Taylor Townsend	6-4, 6-3	Two-time defending champion earns sixth consecutive US Open quarterfinal
Women’s Singles R4	Linda Noskova	Marta Kostyuk	7-5, 5-7, 6-4	Wimbledon champion reaches career-best US Open stage and books Sabalenka quarterfinal

Complete scores can be followed through the official US Open completed-results center.

Alcaraz Has Turned His Biggest Pre-Tournament Question Into a Strength

Carlos Alcaraz entered this US Open with a problem no seed number could solve.

He had not played a singles tournament since April after a right wrist injury forced him away from competition. That absence made his title defense one of the central uncertainties in The Sports Encounter’s pre-tournament analysis of the men’s championship race.

Four rounds later, the uncertainty has changed.

Alcaraz defeated Tommy Paul 6-4, 6-3, 6-4 in two hours and 21 minutes, extending his Grand Slam match-winning streak to 18. Eleven of those victories have come at Flushing Meadows.

He has now reached the quarterfinals in five of his six US Open appearances.

More importantly, the physical concerns that followed him into New York have not become a defining factor.

The Spaniard has dropped only one set through four rounds, against Jaime Faria in Round 2. Roman Safiullin, Yibing Wu and now Paul were all beaten in straight sets.

The official US Open report on Alcaraz’s victory quoted the defending champion saying he was “feeling better and better after every match.”

That assessment matches what the tennis is showing.

Alcaraz is not merely surviving long enough to recover match rhythm. He is shortening difficult passages before they become dangerous.

Paul had the athleticism and defensive range to make rallies uncomfortable, but Alcaraz consistently reached attacking positions first. When the American threatened to complicate the third set, the defending champion responded without allowing one competitive stretch to become an extended momentum change.

The Sports Encounter’s earlier men’s US Open wrap argued that every Alcaraz victory was becoming more significant because the draw around him was losing players expected to challenge him.

Medvedev’s exit has strengthened that argument considerably.

The Men’s Draw Has Become More Open Than the Seedings Suggest

Before the tournament, Alcaraz’s half looked difficult.

The original draw placed Djokovic, Medvedev, Ben Shelton, Arthur Fils and several dangerous hard-court players around the defending champion. The Sports Encounter’s full draw analysis treated that section as one of the most demanding parts of either singles event.

The reality has been very different.

Djokovic was stunned by Mariano Navone in the opening round. Fils lost immediately to Stefanos Tsitsipas. Medvedev is now out. Taylor Fritz surrendered a two-set lead against Francisco Cerundolo elsewhere in the men’s draw. Felix Auger-Aliassime fell to Karen Khachanov, Alex de Minaur was beaten by Botic van de Zandschulp and Andrey Rublev was removed by Daniel Merida.

Only four top-10 men’s seeds remained after Fritz’s defeat, an illustration of how quickly the tournament’s expected order has changed.

Cerundolo described the men’s field as unusually open after his comeback victory over Fritz, and the results since have supported that view.

An open draw, however, does not mean an easy draw.

It means players who might normally expect to meet a major champion now encounter opponents playing with less historical baggage and more opportunity.

That distinction is becoming essential in New York.

Tiafoe Finally Solves a Medvedev Problem That Had Followed Him for Years

Frances Tiafoe entered his fourth-round match carrying one of the clearest negative matchup records among Sunday’s major contests.

Medvedev had won six of their previous seven meetings.

He also arrived in excellent form.

The 2021 champion had beaten Arthur Rinderknech 6-4, 6-4, 6-4 in Round 3 after moving through his first two matches without being dragged into excessive court time. His service numbers were among the strongest in the tournament through three rounds.

Tiafoe changed that trajectory.

The American took the opening set through a dominant tiebreak, controlled enough of the middle set to prevent Medvedev from settling into his preferred defensive geometry, then survived the third-set pressure to win another tiebreak.

The final score, 7-6(1), 6-4, 7-6(6), removed one of the most experienced hard-court major players left in the draw.

This is precisely the type of victory Tiafoe needs if he wants his repeated deep US Open runs to become something more.

He has already reached two semifinals in New York, in 2022 and 2024. Reaching the second week here is no longer an unusual achievement for him.

Beating a former champion who had dominated their previous meetings is different.

Tiafoe’s tournament began with a five-set escape against Martin Damm. He then defeated Rei Sakamoto and Valentin Vacherot before facing Medvedev.

The trajectory has therefore moved from survival to increasingly controlled tennis.

That matters more than the reputation attached to any single opponent.

Alex Michelsen Is Building the American Story Nobody Expected to Lead

Tiafoe attracts attention naturally in New York.

Alex Michelsen has reached the quarterfinals much more quietly.

The 22-year-old defeated Tomas Martin Etcheverry 7-6(6), 6-4, 6-4 to reach the first major quarterfinal of his career.

That breakthrough deserves context.

Michelsen had never gone beyond the fourth round at a Grand Slam. His best previous major run came at the Australian Open.

At Flushing Meadows, he has now won four matches while dropping remarkably little energy in extended five-set battles.

He opened with a straight-sets victory over Federico Cina, then eliminated fellow American Brandon Nakashima 6-3, 6-4, 6-4. Daniel Merida was beaten 7-6(5), 6-4, 6-3 before Michelsen handled Etcheverry in another three-set performance.

This is where the idea of an open draw needs to be handled carefully.

Michelsen has benefited from major seeds disappearing around him.

He has also repeatedly beaten the player placed in front of him.

Opportunity only becomes a story when somebody converts it.

Michelsen has.

American Men’s Tennis Has Lost Fritz and Paul but Gained Depth

The United States placed five men in the Round of 16 at this US Open, the country’s highest total at that stage since 1995.

That group included Paul, Tiafoe, Michelsen, Ben Shelton and 20-year-old Learner Tien.

Paul is now out.

Fritz had already fallen to Cerundolo after leading by two sets.

But Tiafoe and Michelsen are quarterfinalists, while Shelton and Tien still had opportunities to extend the American presence when this article was filed.

The significance lies in the distribution.

American men’s tennis has spent years waiting for one player to carry the burden created by Andy Roddick’s 2003 US Open championship, still the country’s most recent men’s Grand Slam singles title.

This tournament looks different.

Several players have entered the second week with legitimate routes rather than one national hope carrying the entire narrative.

The Sports Encounter’s broader tournament analysis identified that depth before the fourth round began.

Sunday confirmed that at least two Americans were capable of turning it into quarterfinal tennis.

Sabalenka Keeps Winning Even When the Match Becomes Uncomfortable

Aryna Sabalenka’s 6-4, 6-3 victory over Taylor Townsend looks straightforward on the scoreboard.

The match itself was more complicated.

Townsend broke Sabalenka three times during the defending champion’s first four service games. Her willingness to move forward, change pace and prevent Sabalenka from settling into repeated baseline patterns created the sort of tactical disruption lower-ranked players rarely sustain against the world No. 1.

Sabalenka responded rather than panicked.

After falling behind 3-1 in the second set, she took control and closed the match without allowing Townsend another route back into it.

The win gives Sabalenka a sixth consecutive US Open quarterfinal and extends her winning streak at Flushing Meadows to 17 matches.

She is now three victories away from becoming the first woman since Serena Williams to win three consecutive US Open singles titles.

The official US Open report on Sabalenka’s fourth-round win captured the part that mattered most. Sabalenka described the contest as “really challenging,” but the challenge never became panic.

That may be the defining quality of her New York title defense so far.

The Sports Encounter followed the beginning of that chase in our Day 2 report on Sabalenka’s three-peat bid and Alcaraz’s return.

Both defending champions have now reached the quarterfinals.

Townsend’s Exit Should Not Reduce What She Showed

Taylor Townsend leaves the singles tournament without a first Grand Slam quarterfinal.

Her run still mattered.

Townsend arrived in the fourth round ranked No. 96 but had already demonstrated why rankings can become misleading in major-match conditions.

She defeated Diana Shnaider in three sets and entered the Sabalenka match with the confidence of a player comfortable using patterns most opponents rarely see.

Her net game forced Sabalenka to pass rather than simply overpower her.

The first set became uncomfortable partly because Townsend refused to play the type of tennis Sabalenka prefers to attack.

The problem was sustaining that disruption.

Sabalenka eventually found enough depth on return and began controlling the first aggressive ball more consistently.

Once that happened, Townsend’s variety became harder to deploy from neutral or defensive positions.

The loss ends her singles run but strengthens the wider impression that her game can make elite opponents think differently rather than simply hit better.

Noskova Survives Six Match Points’ Worth of Pressure to Reach the Last Eight

Linda Noskova’s victory over Marta Kostyuk produced a very different kind of fourth-round test.

There was no straight-set control.

Noskova won 7-5, 5-7, 6-4 and required six match points before finally closing the contest.

Kostyuk repeatedly refused to allow the Wimbledon champion to finish.

She recovered from difficult positions in the second set, saved match points and broke Noskova to love to force a decider.

That should have changed the emotional direction of the match.

Noskova rebuilt.

The Czech regained enough control through her serve and backhand to create another closing opportunity in the third set and finally converted it with an unreturnable serve.

The victory gives her the deepest US Open run of her career.

More importantly, it extends a Grand Slam season that has already changed her status.

Noskova is no longer arriving in the second week as an emerging player hoping to discover whether she can handle major pressure.

She won Wimbledon.

Now she has reached the US Open quarterfinals only weeks later.

Sabalenka vs Noskova Is Already One of the Quarterfinals of the Tournament

Sabalenka against Noskova is now confirmed.

Seed numbers describe it as No. 1 against No. 6.

The season gives it a much richer identity.

Sabalenka is the two-time defending US Open champion.

Noskova is the reigning Wimbledon champion.

One is three wins from a historic three-peat. The other is trying to turn a breakthrough major championship into evidence that she now belongs permanently in the last stages of Grand Slams.

The styles should amplify the stakes.

Noskova is comfortable taking pace early, particularly from the backhand side, and does not need to retreat far behind the baseline to absorb heavy hitting.

That matters against Sabalenka.

Players who surrender court position too early often spend entire Sabalenka service games reacting.

Noskova’s challenge will be keeping enough depth through the middle of the court to prevent Sabalenka from attacking the second ball on her own terms.

Sabalenka still owns the heavier serve and greater ability to finish points without building extended patterns.

The match may therefore turn on who controls the first neutral ball after serve and return.

The Women’s Draw Still Has Far More Championship Experience Alive

The men’s event is losing former champions.

The women’s draw is doing something else.

Sabalenka remains alive.

Noskova remains alive.

Iga Swiatek, Coco Gauff, Naomi Osaka and Elena Rybakina still had fourth-round matches ahead at the publication cutoff.

Jessica Pegula, Mirra Andreeva, Anna Kalinskaya, Emma Navarro, Iva Jovic, Zheng Qinwen and Anastasia Potapova were also part of the remaining field.

That produces a more concentrated form of pressure.

Future quarterfinalists are more likely to meet opponents who already understand the emotional and tactical demands of major championship tennis.

Swiatek is one of the clearest examples.

The Sports Encounter’s analysis of her historic Grand Slam consistency streak examined why the former champion’s No. 8 seeding understates how reliably she reaches the second week of majors.

She now faces Zheng Qinwen, one of the most dangerous remaining unseeded-by-ranking narratives after Zheng’s recovery from elbow surgery.

Zheng’s Comeback Against Keys Was One of the Results That Changed Monday

Madison Keys appeared to have survived the worst of her US Open danger when she saved five match points against Anna Bondar in Round 2.

Her tournament eventually ended in a more dramatic way.

Zheng Qinwen recovered from a 6-1 opening-set loss and then survived a deciding set in which Keys led 5-0.

Zheng completed a 1-6, 7-6(3), 7-5 comeback to reach the fourth round.

That result matters because it created Swiatek-Zheng rather than another conventional seeded matchup.

Zheng has already shown she can disrupt Swiatek on the biggest stage, most famously at the Paris Olympics.

Swiatek arrives with confidence restored after a difficult first half of the season.

The Sports Encounter’s coverage of Osaka, Keys and the early major survivors showed how much energy Keys had already spent simply reaching Round 3.

Zheng eventually made that accumulated vulnerability count.

Osaka vs Rybakina May Be the Most Explosive Remaining Women’s Fourth-Round Match

Naomi Osaka and Elena Rybakina offer another completely different quarterfinal route.

Osaka reached the fourth round by surviving Elise Mertens 6-3, 3-6, 7-5.

The match was physically uncomfortable.

Osaka received treatment for an Achilles problem, lost emotional control at times and still found enough serving and forehand aggression late in the third set to close the match.

That makes Rybakina a particularly demanding next opponent.

The No. 2 seed has one of the cleanest first-strike games in women’s tennis and can make physical uncertainty costly because points can disappear quickly behind her first serve.

Osaka does not have to outlast Rybakina.

She has to win enough of the first four shots.

If both players serve well, this could become one of the shortest-rally, highest-pressure matches of the entire fourth round.

Gauff vs Jovic Turns American Depth Into a Generational Match

Coco Gauff faces Iva Jovic in an all-American fourth-round match on Monday.

Jovic reached the second week after defeating Alexandra Eala 7-5, 3-6, 7-5.

At 18, she has become the youngest American woman since Venus Williams in 1998 to reach the second week at three Grand Slams in the same season.

Gauff represents the next level of examination.

The former US Open champion has not dropped a set through three rounds and enters the match with considerably more experience handling Arthur Ashe Stadium pressure.

Jovic’s advantage may be psychological.

She is playing without the title expectation that follows Gauff into every major.

The Sports Encounter covered Eala’s progress, along with Fritz and Flavio Cobolli, in our feature on emerging players and major performances earlier in the tournament.

Jovic ended Eala’s run.

Now she has the chance to change the American women’s title race.

The Weather Story Has Faded, but the Tournament It Created Remains

Rain dominated the opening week.

The difference between matches played beneath roofs and those repeatedly interrupted on outside courts created what The Sports Encounter described as a two-speed tournament in our analysis of the weather-disrupted schedule.

The timetable has now largely recovered.

The consequences have not disappeared completely.

Different players reached the second week carrying very different physical workloads.

Zverev needed nearly five hours to survive Lorenzo Sonego in Round 1 and later played another five-set match against Quentin Halys.

Alcaraz has spent far less time under sustained physical pressure.

Noskova has now played a draining three-set fourth round.

Sabalenka has still not been pushed into a deciding set.

Those differences become more relevant with every round.

Monday’s Men’s Matches Could Open the Draw Even Further

Match	Main Storyline
Francisco Cerundolo vs Alexander Blockx	Fritz conqueror faces 21-year-old Belgian who eliminated No. 5 seed Flavio Cobolli
Karen Khachanov vs Learner Tien	Experienced major semifinalist against 20-year-old American breakthrough player
Arthur Gea vs Botic van de Zandschulp	Lucky-loser run meets player who eliminated Alex de Minaur
Alexander Zverev vs Luciano Darderi	Top seed continues title pursuit against opponent who has already beaten him this season

The Zverev match may carry the most pressure.

He entered the tournament as the No. 1 seed after Jannik Sinner withdrew and is now one of the few elite seeds left in a field increasingly shaped by unexpected names.

Darderi has already defeated him once this season.

Zverev therefore faces the kind of match that looks favorable from the rankings but carries enough recent history to make complacency dangerous.

Monday’s Women’s Round of 16 Could Change the Entire Bottom Half

Match	Why It Matters
Iga Swiatek vs Zheng Qinwen	Former champion faces Olympic rival who just erased a 5-0 deciding-set deficit against Madison Keys
Naomi Osaka vs Elena Rybakina	Two major champions with elite first-strike tennis
Coco Gauff vs Iva Jovic	Former US Open champion meets one of America’s brightest teenage prospects
Mirra Andreeva vs Anastasia Potapova	Reigning French Open champion continues another deep major run

These matches explain why the women’s tournament has not opened in the same way as the men’s.

Too many proven champions remain.

Whoever reaches the semifinals is likely to arrive there having removed somebody with a genuine major résumé.

What the Quarterfinal Picture Already Tells Us

Player	Status	Current Narrative
Carlos Alcaraz	Quarterfinal	Defending champion, 18 straight Grand Slam wins
Frances Tiafoe	Quarterfinal	Removed 2021 champion Medvedev
Alex Michelsen	Quarterfinal	First Grand Slam quarterfinal
Aryna Sabalenka	Quarterfinal	17 straight US Open wins, three-peat still alive
Linda Noskova	Quarterfinal	Wimbledon champion reaches career-best US Open stage

TSE Analysis: The Two Singles Draws Are Now Asking Different Questions

The men’s tournament is asking who can recognize an opening quickly enough to use it.

The women’s tournament is asking which proven contender can survive a field that is becoming harder rather than easier.

That difference has become the defining story of the second week.

Alcaraz is benefiting from the removal of players who once made his section look brutal, but his own tennis deserves equal attention. He has returned after months away and reached the quarterfinals while dropping only one set.

Tiafoe has taken advantage in another way. He did not receive a free route around Medvedev. He beat him.

Michelsen has converted a favorable section into the best major result of his career, which is precisely what a rising player is supposed to do when a draw changes around him.

On the women’s side, Sabalenka has not needed the tournament to clear around her. She has continued doing what she has done in New York for three years.

Noskova’s presence changes the next step.

The defending champion’s quarterfinal opponent is not a hopeful outsider enjoying an unexpected run. She is the reigning Wimbledon champion.

Behind them, Swiatek, Osaka, Rybakina, Gauff and Andreeva still have opportunities to add even more championship quality to the last eight.

That is why the US Open now feels like two tournaments sharing the same grounds.

In the men’s draw, the hierarchy is breaking apart.

In the women’s draw, it is being compressed.

Both conditions create opportunity.

They simply demand different kinds of courage from the players trying to take it.

What Comes Next at the US Open

The remaining Round-of-16 matches continue Monday before the singles quarterfinals begin Tuesday, September 8.

The official US Open tournament schedule confirms quarterfinal play across September 8 and 9, followed by the women’s semifinals on September 10 and men’s semifinals on September 11.

By then, this tournament may look even less like the draw published in late August.

That is the fascination of the second week.

The first seven days decide who survives.

The next few decide whether survival becomes history.