A U.S. Open Series event
Tuesday
At The Taube Family Tennis Center
Stanford, Calif.
Purse: $710,000 (Premier)
Surface: Hard-Outdoor
Singles
First Round
Carol Zhao, Canada, def. Yanina Wickmayer, Germany, 6-2, 1-0, retired.
Monica Puig, Puerto Rico, def. Carla Suarez Navarro (7), Spain, 6-3, 7-5.
Garbine Muguruza, Spain, def. Dominika Cibulkova (6), Slovakia, 6-2, 4-6, 6-2.
Doubles
First Round
Varvara Lepchenko, United States, and Ajla Tomljanovic, Croatia, def. Maria Osaka, Japan, and Marina Shamayko, Russia, 6-1, 6-0.
Caroline Garcia, France, and Zhang Shuai, China, def. Kristie Ahn, United States, and Carol Zhao, Canada, 3-6, 6-1, 12-10.
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