Korea Open: Shnaider sets up Kostyuk clash in quarters

Russian Diana Shnaider, the No 4 seed, won against Canadian qualifier Carol Zhao 6-3, 6-3 to move into the last eight of the Korea Open at the Olympic Park Tennis Center in Seoul on Wednesday.

Shnaider, ranked No 16, will play Ukrainian Marta Kostyuk, the No 5 seed, next.

Zhao, ranked No 272, defeated wildcard Dayeon Back (6-4, 6-1) in the previous round of the Seoul tournament.

Seoul WTA 500, other second-round matches (Olympic Park Tennis Center, hard, USD 922,573):

• Veronika Kudermetova beat Liudmila Samsonova (2): 6-4, 6-2
• Marta Kostyuk beat Heather Watson (Q): 6-2, 6-2
• Polina Kudermetova (LL) beat Ekaterina Alexandrova (7): 6-2, 7-5
• Daria Kasatkina vs. Hailey Baptiste
• Emma Raducanu vs. Yue Yuan
• Ajla Tomljanovic vs. Beatriz Haddad Maia
• Amanda Anisimova vs. Viktoriya Tomova