Tennis

WTA Credit One Charleston

At Family Circle Tennis Center

Charleston, S.C.

Purse: $1,064,510

Surface: Red clay

Women’s Singles

Round of 16

Amanda Anisimova (8), United States, def. Yulia Putintseva (10), Kazakhstan, 6-4, 6-4.

Ekaterina Alexandrova (9), Russia, def. Diana Shnaider (6), Russia, 6-2, 6-1.

Emma Navarro (4), United States, def. Ashlyn Krueger (15), United States, 4-6, 6-4, 6-2.

Danielle Collins (7), United States, def. Jelena Ostapenko (11), Latvia, 7-5, 6-3.

Jessica Pegula (1), United States, def. Ajla Tomljanovic, Australia, 6-3, 6-2.

Zheng Qinwen (3), China, def. Elise Mertens (13), Belgium, 6-3, 3-6, 6-3.

Anna Kalinskaya (14), Russia, def. Madison Keys (2), United States, 6-2, 6-4.

Sofia Kenin, United States, def. Daria Kasatkina (5), Russia, 6-3, 7-6 (7).

ATP U.S. Men’s Clay Court Championship

At River Oaks Country Club

Houston

Purse: $663,135

Surface: Red clay

Men’s Singles

Round of 16

Brandon Nakashima (4), United States, def. Mackenzie McDonald, United States, 6-1, 7-5.

Christopher Eubanks, United States, def. Kei Nishikori (8), Japan, 6-1, ret.

Frances Tiafoe (2), United States, def. Adam Walton, Australia, 7-5, 6-3.

Alex Michelsen (5), United States, def. Adrian Mannarino, France, 6-7 (0), 6-4, 6-2.