Olga Govortsova, ranked 83rd in the world, ended a frustrating run of results with a convincing 6-2, 6-4 victory over No. 2 seed Samantha Stosur in the second round at the Bank of the West Classic on Tuesday.
Govortsova won back-to-back matches for the first time this season. She had lost seven of her previous eight entering the tournament.
The Belarussian beat Germany’s Julia Goerges in straight sets in the first round. Govortsova earned her ninth win over a top-20 opponent and her first since beating Agnieszka Radwanska via retirement at New Haven last year. This is also the first time she has reached a quarterfinal round this season.
Stosur, ranked 13th, reached the third round at Wimbledon. The Australian was knocked out in the first round for the first time since early May a span of five tournaments.
Seventh-seeded Urszula Radwanska downed American Christina McHale, 6-1, 6-3 while Daniela Hantuchova beat Yanina Wickmayer 6-2, 4-6, 6-0, in their first-round match.
In other matches, sixth-seeded American Varvana Lepchenko beat qualifier Michelle Larcher de Brito of Portugal 6-2, 6-4; qualifier Coco Vandeweghe, downed Romania’s Monica Niculescu 6-0, 6-3; Austria’s Tamira Paszek was ahead 6-1, 6-7(4), 3-0 and advanced when Russian qualifier Alla Kudryavtseva retired .AP