Alcaraz regains No.1 spot after US Open win over Sinner

Sinner had held the top spot since making his debut in New York in June 2024, a 65-week long stay.

Alcaraz first reached that spot in September 2022 at the age of 19 — making him the youngest No. 1 in ATP history — by claiming his first major championship at that year's US Open. He relinquished that ranking in September 2023.

"When you achieve the goals you set up (for) yourself at the beginning of the year, it feels amazing," Alcaraz said after winning his second US Open title and his sixth Grand Slam trophy.

"For me," he added, "(to) achieve that once again ... is a dream."

Germany's Alexander Zverev stayed at No. 3 when the new rankings were released on Monday, while Novak Djokovic, the 24-time major champion who lost to Alcaraz in Friday's semifinals, went up three spots from No. 7 to No. 4.

Meanwhile, Amanda Anisimova jumped five spots to a career-best No. 4 in the women's WTA rankings after finishing as runner-up to Aryna Sabalenka.

Belarusian Sabalenka was assured of remaining at No. 1 by getting to the quarterfinals in New York, then wound up collecting her second US Open title in a row with a 6-3 7-6 (7-3) win over American Anisimova.

Anisimova's second consecutive runner-up finish at a major — she lost to Iga Swiatek in the Wimbledon final in July — allowed her to climb five spots from No. 9, part of a remarkable surge from outside the top 350 when she returned last season from a mental-health break.

Poland's Swiatek, eliminated in the US Open quarterfinals by Anisimova, stayed at No. 2, followed by Coco Gauff.

Jessica Pegula slid from No. 4 to No. 7. She exited against Sabalenka in the semifinals last week, a year after losing to her in the US Open final.

Naomi Osaka's first Grand Slam semifinal since the 2021 Australian Open — she lost Thursday to Anisimova in that round — carried her from No. 24 to No. 14. 

The American four-time major champion and former No. 1 hadn't been in the top 20 since January 2022.