Second-seeded Samantha Stosur of Australia defeated Agnes Szavay of Hungary 6-2, 3-6, 6-1 in Group B and No. 3 Yanina Wickmayer of Belgium overcame Kimiko Date Krumm of Japan 7-6 (5), 6-3 in Group C.
The tournament features the top 10 women who won a WTA Tour event this season - but didn't qualify for last week's WTA championships in Doha, Qatar - along with two wild cards.
Story continues below ↓advertisement | your ad hereFourth-seeded Sabine Lisicki lost her Group D match against Aravane Rezai 1-6, 6-3, 6-4.
The 12 players are divided into four groups, with a round-robin stage before the semifinals.
© 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Bartoli into Japan Women’s Open quartersLa Liga round-Up