Muchova falls as Pegula reaches US Open fourth round

Jessica Pegula recovered to beat Leylah Fernandez, while Karolína Muchova was among the seeds eliminated and British doubles teams progressed at the US Open.

Jessica Pegula recovered from a set down to beat Leylah Fernandez during a busy third-round day at the US Open. Karolína Muchova was among the seeded players eliminated, while Harriet Dart and Maia Lumsden made progress in doubles. Pegula turns the match around Fernandez took the opening set against third seed Pegula, but the American recovered to win 1-6, 6-4, 6-3. Pegula now faces 16th seed Sorana Cirstea, who beat 19th seed Jasmine Paolini 6-3, 6-3. Twenty-sixth seed Emma Navarro ended seventh seed Muchova’s run 6-3, 7-5. Navarro’s next opponent is 21st seed Anna Kalinskaya, who beat ninth seed Elina Svitolina 6-3, 2-6, 6-3. Seeds hold elsewhere Top seed Aryna Sabalenka beat Kamilla Rakhimova 6-3, 6-4. Eleventh seed Marta Kostyuk defeated 18th seed Ekaterina Alexandrova 6-3, 6-2, while sixth seed Linda Nosková beat 29th seed Ann Li 6-2, 6-7 (4-7), 6-2. Taylor Townsend also removed 15th seed Diana Shnaider 6-2, 6-7 (3-7), 6-3. The fourth-round pairings from this section are Sabalenka–Townsend, Kostyuk–Nosková, Pegula–Cirstea and Kalinskaya–Navarro. Dart and Lumsden advance in doubles Harriet Dart and Maia Lumsden beat Oleksandra Oliynykova and Petra Marcinko 7-5, 6-3 in the women’s doubles first round. The British pair went through in straight sets. Fourth seeds Hsieh Su-wei and Jeļena Ostapenko beat Darija Jurak Schreiber and Antonia Ružić 6-4, 6-3. Eighth seeds Elise Mertens and Diana Shnaider also went through, beating Daria Snigur and Hanne Vandewinkel 6-1, 6-3. Swiatek, Osaka and Jovic wait in the next round Iga Swiatek’s next match is against 25th seed Marie Bouzková, while Naomi Osaka plays 23rd seed Elise Mertens. Fourteenth seed Iva Jovic meets 17th seed Alexandra Eala, and Madison Keys faces seventh seed Qinwen Zheng. Correction, 6 September 2026: the Pegula–Fernandez result, Kalinskaya–Svitolina result and resulting fourth-round pairings were corrected against the official US Open results feed .