Chinese Zheng Qinwen, seeded No 7, defeated German Jule Niemeier 6-2, 6-1 to advance to the round of 16 at the US Open held at the USTA Billie Jean King National Tennis Center.
Zheng, holding the No 7 ranking, will face the winner of the match between Croatian Donna Vekic, the No 24 seed, and American Peyton Stearns in the next round.
During the tournament, the 21-year-old Chinese player defeated American wildcard Amanda Anisimova (4-6, 6-4, 6-2) and Russian Erika Andreeva (6-7 (3), 6-1, 6-2).
Niemeier, ranked No 101, won against Ukrainian Dayana Yastremska, the No 32 seed (6-4, 6-7 (3), 6-4) and Japanese Moyuka Uchijima (6-4, 6-0) in the previous rounds.
New York (Grand Slam), other third-round results (USTA Billie Jean King National Tennis Center, hard, USD 75,000, most recent results first):
- Ekaterina Alexandrova vs. Aryna Sabalenka
- Yulia Putintseva vs. Jasmine Paolini
- Karolina Muchova vs. Anastasia Potapova
- Beatriz Haddad Maia vs. Anna Kalinskaya
- Jessika Ponchet vs. Caroline Wozniacki
- Jessica Bouzas Maneiro vs. Jessica Pegula
- Sara Errani vs. Diana Shnaider
- Ashlyn Krueger vs. Liudmila Samsonova
- Iga Swiatek vs. Anastasia Pavlyuchenkova
- Madison Keys vs. Elise Mertens
- Donna Vekic vs. Peyton Stearns
- Emma Navarro vs. Marta Kostyuk
- Victoria Azarenka vs. Yafan Wang
- Elina Svitolina vs. Coco Gauff: Friday
- Elena-Gabriela Ruse vs. Paula Badosa: Friday
