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Ben Shelton stunned defending champion Carlos Alcaraz in a dramatic five-set quarter-final at the US Open.
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The American eighth seed won 6-7(5), 6-1, 6-3, 1-6, 7-6(10-7) after four hours and 28 minutes.
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Shelton’s powerful serve and composure in the deciding tie-break proved decisive against the world No. 3.
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The victory sets up an all-American semi-final against Frances Tiafoe.
September 09, (THEWILL) — Ben Shelton produced one of the biggest shocks of the 2026 US Open, ending Carlos Alcaraz’s title defence with a stunning five-set victory at Arthur Ashe Stadium.
The eighth-seeded American recovered from losing the opening set and survived a fierce fightback from the defending champion before prevailing 6-7(5), 6-1, 6-3, 1-6, 7-6(10-7) after four hours and 28 minutes.
It was a breakthrough victory for Shelton, who had lost all three of his previous meetings with Alcaraz, including their last-16 clash at the 2025 French Open.
More importantly, the win sent Shelton into the US Open semi-finals for the first time and ended Alcaraz’s bid to defend his New York crown successfully.
Carlos Alcaraz leaving the U.S. Open with a smile on his face after losing a heartbreaker at 3:30 am.
You have to respect this guy. 💔 pic.twitter.com/26C7DO8cky
— The Tennis Letter (@TheTennisLetter) September 9, 2026
Alcaraz Takes the First Blow
The opening set immediately showed how little separated the two players.
Shelton’s baseline power and serve constantly tested Alcaraz, but the Spaniard held his nerve when the set reached a tie-break.
Alcaraz eventually edged it 7-5 to take the lead, putting himself in an early position to continue his defence. But Shelton’s response was emphatic.
Rather than allowing the setback to affect him, the American raised his intensity and began dictating more of the rallies.
He raced through the second set 6-1 before continuing his momentum in the third, breaking Alcaraz’s serve and eventually taking it 6-3.
Suddenly, the defending champion was one set away from elimination.
Alcaraz Refuses to Surrender
For a player accustomed to producing comebacks on the biggest stages, Alcaraz was not going to disappear quietly.
The world No. 3 rediscovered his aggression in the fourth set and immediately put Shelton under pressure.
The Spaniard broke three times as his movement, shot-making and defensive skills finally began to overwhelm the American.
Alcaraz stormed through the set 6-1, sending the match into a deciding fifth set and restoring the sense that another comeback could be on the cards.
The momentum, however, shifted again.
Shelton Holds His Nerve When It Matters
The fifth set became a battle of nerve.
Neither player could find the decisive break, with Shelton relying heavily on his serve while Alcaraz continued to produce the kind of defence and counter-punching that had carried him to the title the previous year.
With the set locked at 6-6, there was only one way to separate them: a 10-point deciding tie-break.
This time, Shelton made the crucial moves.
The American established an early advantage and refused to allow Alcaraz back into the contest. He maintained his composure through the closing points before sealing the tie-break 10-7.
After four hours and 28 minutes, Shelton had finally beaten Alcaraz.
Shelton’s Serve Delivers the Difference
The American’s serve was one of the defining features of the contest.
Shelton won 70% of points behind his first serve and produced 54 unreturned serves from 156 deliveries. His first serve also reached speeds close to 150mph.
Alcaraz finished with more winners than Shelton, 38 to 34, but his 53 unforced errors proved costly.
Shelton committed 35 unforced errors, allowing him to stay within striking distance even when Alcaraz appeared to have regained control.
The numbers reflected the nature of the match: Alcaraz produced plenty of attacking tennis, but Shelton was better at protecting himself from the errors that can decide a five-set battle.
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A Win That Changes Shelton’s US Open Story
The victory also carries extra significance because of Shelton’s previous record against Alcaraz.
The Spaniard had won their first three encounters, leaving Shelton still searching for a breakthrough against one of the leading players of his generation.
He finally found it on the biggest stage.
And he did so against the defending US Open champion, in a match that lasted deep into the New York night.
The contest finished at 3:33 am local time, making it the latest finish in US Open history.
For Shelton, the late-night epic ended with a place in the final four.
All-American Semi-Final Awaits
Shelton will now face fellow American Frances Tiafoe in the semi-finals.
Tiafoe booked his place in the last four earlier after recovering from two sets down to defeat Alex Michelsen in another remarkable five-set battle.
The 11th seed won 5-7, 3-6, 7-5, 6-3, 7-6(10-6), completing his comeback after Michelsen had been within touching distance of victory.
That sets up an all-American semi-final between two players who have taken very different routes to the last four.
Tiafoe has reached his third US Open semi-final in five years, while Shelton is appearing at this stage of the tournament for the first time.
For Alcaraz, meanwhile, the defeat brings a surprising end to his title defence.
The Spaniard arrived in New York hoping to become the first man since 2008 to successfully defend the US Open men’s singles title.
Instead, Shelton’s serve, resilience and composure under pressure have ended those ambitions — and opened the door for a new American champion to emerge.
Olumide Atiba is a sports journalist with THEWILL, known for his keen news sense and compelling storytelling. He has built a reputation for turning leads into clear, well-structured reports that resonate with readers, with a strong focus on football coverage
