American tennis star Ben Shelton defeated defending champion Carlos Alcaraz in a five-set quarterfinal thriller at the U.S. Open that concluded at 3:33 a.m. on Wednesday, September 9, 2026, marking the latest-ever finish in tournament history and setting up an all-American semifinal clash against Frances Tiafoe.
Tennis history arrived well past midnight in Queens, New York, as a packed crowd at Arthur Ashe Stadium witnessed a contest that pushed both physical endurance and tournament scheduling to unprecedented lengths. The quarterfinal battle between the eighth-seeded Shelton and the second-seeded Alcaraz ended at 3:33 a.m. local time, eclipsing the previous tournament record set in 2022 when Alcaraz defeated Jannik Sinner in a match that wrapped up at 2:50 a.m.
The grueling encounter spanned four hours and 28 minutes, demanding extraordinary resilience from both competitors under the late-night lights at Flushing Meadows. The five-set victory propelled Shelton into the tournament semifinals, guaranteeing that a United States men’s player will reach the final for the first time since Andy Roddick captured the title in New York in 2003.
How Ben Shelton Outdueled Carlos Alcaraz in Five Sets
The match swung dramatically across five competitive sets filled with high-intensity rallies and shifts in momentum. Shelton secured a 6-7(5) 6-1 6-3 1-6 7-6(10-7) victory, overcoming a tight first-set tiebreak loss where Alcaraz initially seized the upper hand.
Shelton responded swiftly by capturing the second and third sets, disrupting the defending champion’s rhythm with aggressive serving and relentless pressure. Alcaraz, playing in his first tournament since April after missing nearly five months due to a wrist injury, showed signs of physical distress during the match. At one point, the Spaniard could be seen vomiting into a towel during a break before gathering himself to push the contest into a deciding fifth set.
Neither player broke serve in the final set, sending the match into a 10-point tiebreaker. Shelton established control in the decisive moments, ultimately sealing the upset with a 146 mph ace on match point to upend the seven-time major champion.
The Toll on the Defending Champion and Historic Streaks Broken
The defeat snapped several remarkable runs for Alcaraz on the Grand Slam stage. Shelton ended an 18-match winning streak for the Spanish star in major tournaments. Furthermore, the result marked Alcaraz’s first Grand Slam loss to an American player, as well as his first defeat in a major against a left-handed opponent. It also stood as only the second five-set defeat of his career.
Alcaraz committed 53 unforced errors during the grueling battle, struggling particularly with his forehand under Shelton’s heavy barrage. Despite the physical toll and the uncharacteristic mistakes, the defending champion offered gracious praise for his opponent after the match concluded in the early morning hours.
Carlos Alcaraz stated via Sports Yahoo that Shelton had played a very complete and very mature match, knowing exactly what to do at every moment, adding that physically he was a beast and seemed to have no weaknesses whatsoever.
Alcaraz also reflected positively on his effort despite the disappointing outcome. He remarked that he was leaving the court with a smile and was proud of himself and how he had fought.
Crowd Energy and Gainesville Roots Fueling the American Star
Throughout the late-night contest, the Arthur Ashe Stadium crowd played a pivotal role in maintaining the players’ energy levels as the hours ticked past 3 a.m. Thousands of fans stayed until the very end, filling the venue with persistent chants in support of the American player.

Ben Shelton noted via Fox News that it was always about the people in the crowd—whether his coaches and team over there, his family and friends over here, or the city of New York—explaining that they had shown up that night until 3 a.m. with USA chants until the very end, which was what kept him going and got him the win that night.
Shelton added a touch of humor regarding the grueling schedule during his post-match remarks, stating that he was just hoping his best friend and his sister over there would not have to be at work at 6 a.m. in three hours.
The victory marks another major milestone in Shelton’s athletic career. The Gainesville native previously won an FHSAA state title for Buchholz in 2019, followed by an NCAA team championship for Florida men’s tennis in 2021 and an NCAA singles crown in 2022.
The Road Ahead to the U.S. Open Semifinals
With the quarterfinal victory secured, Shelton advances to the U.S. Open semifinals, where he is scheduled to face compatriot Frances Tiafoe on Friday. Tiafoe advanced to the final four by outlasting fellow American Alex Michelsen in a marathon contest earlier in the week.

The upcoming semifinal guarantees an American presence in Sunday’s championship match. Shelton now stands just two victories away from ending the long-standing championship drought for American men in Grand Slam events, which dates back to Andy Roddick’s victory in New York in 2003.