STANFORD, Calif. (AP) Second-seeded Dominika Cibulkova beat Urszula Radwanska 7-6 (3), 6-3 on Thursday to advance to the Bank of the West Classic quarterfinals.
Cibulkova, the 2013 champion, was ahead 5-2 in the first set before Radwanska rallied to tie it. Cibulkova, playing in her first match of the week after a first-round bye, cruised in the first-set tiebreaker and had no problems in the second set. She will face No. 5 seed Misaki Doi of Japan on Friday.
CoCo Vandeweghe, the No. 4 seed, rallied to beat Nicole Gibbs 2-6, 6-4, 6-2. Gibbs won the first three games of the match and cruised in the first set. But Vandeweghe got the first break of the second set for a 5-4 lead, won it on her serve and took the first three games of the third set.
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Vandeweghe will face Alison Riske, who dropped the first five games of her match but rallied to beat qualifier Ana Bogdan 3-6, 6-2, 6-4.
CiCi Bellis defeated fellow American Sachia Vickery 4-6, 6-4, 6-3 and will face top-seeded Venus Williams on Friday night. Bellis, a 17-year-old wild card, broke Vickery in the seventh game of the third set, held serve in the eighth and broke again for the win.