Second-seeded Argentine Gisela Dulko advanced to the second round, defeating Maria Elena Camerin, 6-1, 6-1. Fourth-seeded Aravane Rezai stopped American Vania King, 6-2, 6-4.
In other second-round play, Greta Arn topped third-seed Tathiana Garbin 6-4, 7-5; eighth-seeded Ekaterina Makarova fell to Olga Savchuk 7-6 (4), 6-4 and fifth-seeded Timea Bacsinszky lost to Petra Cetkovska 6-1, 7-5.
The 34th-ranked Medina Garrigues is seeking her first title since last May when she won the Ligue d'Alsace de Tennis on clay in Strasbourg, France.
Pliskova, Vinci advance to Prague Open quarterfinals
Gonzalez wins at BMW Open; Kohlschreiber out
