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Ben Shelton produced the biggest win of his career by stunning defending champion Carlos Alcaraz in a dramatic five-set quarter-final at the 2026 U.S. Open, with the match becoming the latest-finishing contest in tournament history.
Shelton defeated the third-seeded Alcaraz 6-7(5), 6-1, 6-3, 1-6, 7-6(10-7) after four hours and 28 minutes of intense tennis at Arthur Ashe Stadium. The match finally ended at around 3:33 a.m. local time on Wednesday, setting a new record for the latest finish at the U.S. Open.
The victory sent the eighth-seeded American into the semi-finals, where he will face fellow American Frances Tiafoe in an all-American showdown.
Shelton Overcomes Alcaraz in Five-Set Thriller
Alcaraz started strongly and claimed the opening set in a tiebreak, appearing ready to continue his title defence with another commanding performance.
Shelton, however, quickly changed the momentum.
The American raised his level from the baseline and used his powerful serve to put Alcaraz under sustained pressure. Shelton responded by winning the second set 6-1 before taking the third 6-3 to move within one set of a major upset.
Alcaraz refused to surrender.
The defending champion recovered in the fourth set, winning it 6-1 to force a decisive fifth set and keep his hopes of reaching another U.S. Open semi-final alive.
Decisive Tiebreak Settles the Match
The fifth set developed into a tense battle, with neither player willing to give up the advantage.
Shelton eventually forced the deciding set into a tiebreak, where he maintained his composure under enormous pressure. The American won the final-set tiebreak 10-7, completing one of the most significant victories of his career.
Shelton’s performance was particularly impressive given the quality of his opponent. Alcaraz entered the match as the defending champion and had previously enjoyed a perfect 13-0 record against American opponents in Grand Slam competition.
Latest U.S. Open Finish in Tournament History
The match was already historic before the final point was played.
The quarter-final began at approximately 11:05 p.m. Tuesday and continued deep into Wednesday morning. It surpassed the previous U.S. Open record for the latest finish, which had been set by Alcaraz and Jannik Sinner during their marathon 2022 quarter-final.
The extraordinary schedule created an unforgettable atmosphere inside Arthur Ashe Stadium, with thousands of spectators remaining in the stands well into the early morning.
Shelton later credited the crowd, his team, family and friends, as well as the support of New York fans, for helping him maintain his energy during the marathon encounter.
Alcaraz Struggles With Errors and Physical Demands
While Alcaraz showed tremendous resilience, the Spaniard struggled to maintain his usual level throughout the match.
The defending champion committed 53 unforced errors, considerably more than Shelton, who produced 35. The errors became particularly costly after Alcaraz won the first set.
Alcaraz also appeared to struggle physically during the latter stages of the contest. Despite those difficulties, he continued fighting and managed to force the match into a fifth set.
His determination ensured that Shelton had to produce his best tennis under extreme pressure.
Shelton Records First Top-Three Victory
The victory represented another major milestone for Shelton.
Before the quarter-final, the American had never defeated a player ranked inside the world’s top three, carrying an 0-17 record in such matches. His victory over Alcaraz finally ended that difficult run.
Shelton had already been enjoying an impressive tournament. Before facing Alcaraz, he defeated Stefanos Tsitsipas in straight sets to reach the quarter-finals, following earlier victories over Hubert Hurkacz and Denis Shapovalov.
His run in New York is now giving American men’s tennis another reason for optimism.
All-American Semi-Final Against Frances Tiafoe
Shelton’s reward for defeating Alcaraz is a semi-final against Frances Tiafoe.
Tiafoe also advanced after winning a dramatic five-set encounter against fellow American Alex Michelsen. The result guarantees that an American player will reach the men’s singles final.
The all-American semi-final will attract significant attention as U.S. men’s tennis continues its pursuit of a first men’s Grand Slam champion since 2003.
For Shelton, it is another opportunity to build on what has already become a breakthrough tournament.
A Defining Moment for Ben Shelton
The win over Alcaraz could represent a turning point in Shelton’s career.
The American has long been regarded as one of the most dangerous young players on tour because of his explosive serve, athleticism and aggressive style. However, defeating a defending Grand Slam champion in a five-set battle demonstrates that he can also handle the mental and physical demands of the biggest matches.
The fact that he accomplished it in the middle of the night, in front of a packed Arthur Ashe Stadium, makes the achievement even more memorable.
Shelton now has the opportunity to turn a remarkable quarter-final victory into a potential U.S. Open title run.
Ben Shelton stunned Carlos Alcaraz in one of the most dramatic matches of the 2026 U.S. Open, winning a four-hour-and-28-minute thriller that finished at approximately 3:33 a.m. and set a new tournament record for the latest finish.
The American’s 6-7(5), 6-1, 6-3, 1-6, 7-6(10-7) victory ended Alcaraz’s title defence and delivered Shelton his first career win over a top-three opponent.
With an all-American semi-final against Frances Tiafoe next, Shelton now stands just two victories away from potentially winning his first Grand Slam title on home soil.
