Published: Sep 21, 2012 7:52 AM EDT
Updated: Sep 22, 2012 6:32 AM EDT

SEOUL, South Korea (AP) - Caroline Wozniacki reached the semifinals of the Korea Open by defeating Klara Zakopalova of the Czech Republic 6-2, 6-3 Friday.

The Dane will next play Ekaterina Makarova of Russia, who beat Maria Jose Martinez Sanchez of Spain 6-1, 6-1.

Also, Varvara Lepchenko of the United States beat Tamira Paszek of Austria 4-6, 7-6 (3), 6-4, and Kaia Kanepi of Estonia defeated Kiki Bertens of the Netherlands 6-4, 6-4.