Stephens, ranked No 38, will play No 6 seed Caroline Garcia next.

Cincinnati WTA 1000, other 64 results (Linder Tennis Family Center, hard, USD 2.788.468, most recent results first):

• Elina Svitolina vs. Caroline Wozniacki
• Magda Linette vs. Ann Li
• Daria Kasatkina vs. Peyton Stearns
• Victoria Azarenka vs. Barbora Krejcikova
• Jennifer Brady vs. Donna Vekic
• Irina-Camelia Begu vs. Marie Bouzkova
• Madison Keys vs. Elise Mertens
• Xiyu Wang vs. Mayar Sherif
• Linda Noskova vs. Liudmila Samsonova
• Petra Kvitova vs. Anna Blinkova
• Cristina Bucsa vs. Belinda Bencic
• Jelena Ostapenko vs. Karolina Pliskova
• Danielle Collins vs. Anastasia Pavlyuchenkova
• Bernarda Pera vs. Martina Trevisan
• Marketa Vondrousova vs. Katerina Siniakova
• Petra Martic vs. Emma Navarro
• Qinwen Zheng vs. Aliaksandra Sasnovich
• Ekaterina Alexandrova vs. Sorana Cirstea
• Lin Zhu vs. Anhelina Kalinina
• Karolina Muchova vs. Beatriz Haddad Maia
• Venus Williams vs. Veronika Kudermetova
• Celine Naef vs. Anastasia Potapova: monday
• Jasmine Paolini (Q) beat Marta Kostyuk: 6-2, 6-1