ST. PETERSBURG, Russia — Margarita Gasparyan and Daria Kasatkina both won in the Round of 16 as a record seven Russian players made the quarterfinals of the St. Petersburg Ladies Trophy.
The eighth-seeded Kasatkina beat Aliaksandra Sasnovich of Belarus 5-7, 6-3, 7-6 (2) and Gasparyan ousted Katerina Siniakova of the Czech Republic 6-4, 6-4 to give Russia a clean sweep of all four matches played.
Three other Russians advanced, giving the country seven players in the quarterfinals of a tournament for the first time. The WTA Tour said the last time seven players from one country reached the last eight of a tour-level event was in 1993, when seven Americans were in the Oakland quarterfinals.
The other two matches were all-Russian affairs.
Anastasia Gasanova rallied to beat fifth-seeded Anastasia Pavlyuchenkova 1-6, 7-6 (8), 7-6 (4) despite being ranked 196 places lower at 241st. Second-seeded Veronika Kudermetova needed nearly three hours to overcome Kamilla Rakhimova 7-5, 3-6, 7-6 (5).
Top-seeded Ekaterina Alexandrova, Vera Zvonareva and Svetlana Kuznetsova advanced. The sole non-Russian player in the last eight is Romania’s Jaqueline Cristian.