2025 US Open – Men's singles

Carlos Alcaraz defeated defending champion Jannik Sinner in the final, 6–2, 3–6, 6–1, 6–4 to win the men's singles tennis title at the 2025 US Open. It was his second US Open title and sixth major title overall. By winning the title, Alcaraz regained the world No. 1 singles ranking from Sinner. Alcaraz was the youngest man to win a sixth major title since Björn Borg. Sinner was the fourth (and youngest) man in the Open Era to reach all four major finals in a season (after Rod Laver, Roger Federer, and Novak Djokovic), and the youngest in the Open Era to reach five consecutive major finals. Alcaraz and Sinner became the first pair of men's singles players in the Open Era to contest three major finals in the same year. At 38 years, 103 days of age, Djokovic was the oldest man to reach all four major semifinals in a season. With his third-round win, Djokovic recorded his 192nd career match win at hardcourt majors, surpassing Federer's record. With his semifinal loss to Alcaraz, this marked only the third year since 2007 where Djokovic did not contest a major final (after 2009 and 2017), and the first year since 2002 that none of Big Three contested a major final. Coleman Wong became the first player from Hong Kong to qualify for a men's singles major in the Open Era, and was the first to win a major singles match since Ip Koon Hung and Edwin Tsai at the 1954 Wimbledon Championships—when Hong Kong was a British colony. A record-equaling five qualifiers (Wong, Leandro Riedi, Jan-Lennard Struff, Ugo Blanchet, and Jérôme Kym) reached the third round, tying the tournament's Open Era record along with 1984 and 2021. Ranked No. 435, Riedi was the lowest-ranked player to reach the fourth round of a major since Richard Krajicek at the 2002 Wimbledon Championships. This marked the first time since 2010 that Grigor Dimitrov did not participate at a major, ending his streak of 58 consecutive major appearances.