Top-seeded Vera Zvonareva of Russia eliminated Jill Craybas of the United States 6-4, 7-5.
Zvonareva served up three aces and won 73 percent of her first-point serves.
Third-seeded Agnieszka Radwanska of Poland defeated Britain's Elena Baltacha 6-0, 7-6 (7-4) and second-seeded Andrea Petkovic of Germany knocked off American Alexa Glatch 6-3, 6-4 in the final match of the night.
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