SEOUL, South Korea (AP)—Top-seeded Agnieszka Radwanska of Poland beat Slovakia's Polona Hercog 6-3, 6-3 to reach the second round of the Korea Open on Tuesday.
Defending champion Radwanska converted five of eight break points to defeat Hercog at Olympic Park Tennis Center in 1 hour, 15 minutes and set up a second-round match against Chanelle Scheepers of South Africa.
In other first-round matches, third-seeded Klara Koukalova of the Czech Republic outlasted Kiki Bertens of the Netherlands 6-0, 4-6, 6-4, sixth-seeded Kaia Kanepi Estonia overpowered Russia's Elizaveta Kulichkova 6-2, 6-4, while wild-card entry Maria Kirilenko of Russia defeated Croatian Donna Vekic 3-6, 6-2, 6-4. Qualifier Nicole Gibbs knocked out No. 8 seed Heather Watson 7-5, 6-2.