Coco Gauff reaches U.S. Open semifinals as Elena Rybakina becomes world number one

Coco Gauff advanced to the U.S. Open semifinals on September 9, 2026, after a three-set victory against Mirra Andreeva at the USTA Billie Jean King National Tennis Center. Gauff overcame a first-set deficit to finish the match 2-6, 7-6(7), 6-2 in Arthur Ashe Stadium. Elena Rybakina also reached the semifinals by defeating Qinwen Zheng 3-6, 6-1, 6-4, a result that secured her the world number one ranking. This victory marks the first time since 1975 that the top four women’s seeds have reached the semifinals of the U.S. Open. Gauff is scheduled to face Rybakina in the next round, while Aryna Sabalenka will play Jessica Pegula. The semifinal appearances by Gauff and Pegula ensure American representation in the later stages of the tournament.

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• 9:05 PMBBC News — US Open 2026 results: Coco Gauff saves match points to beat Mirra Andreeva and set up Elena Rybakina semi-final - BBC
• 8:42 PMYahoo Sports — Coco Gauff Rebounds To Reach U.S. Open Semis, Elena Rybakina Takes Over World No. 1