Auckland, New Zealand (SportsNetwork.com) - Caroline Wozniacki and Venus Williams were among Wednesday's second-round winners at the ASB Classic.
The top-seeded Wozniacki beat American Taylor Townsend 6-1, 7-6 (7-4), while Williams cruised past Japan's Kurumi Nara 6-4, 6-1.
Williams lost to Serbian Ana Ivanovic in last year's Auckland finale.
Another victory of a seeded American saw Coco Vandeweghe, seeded seventh, outlast Belgian Kirsten Flipkens 6-1, 6-7 (5-7), 7-5.
Fourth-seeded Barbora Zahlavova Strycova of the Czech Republic handed New Zealander Marina Erakovic a 6-0, 2-6, 6-4 defeat.
Germany's Julia Goerges defeated Czech qualifier Lucie Hradecka 6-3, 7-5, while Polish qualifier Urszula Radwanska rallied from a first-set loss to defeat Slovakian Daniela Hantuchova 1-6, 6-3, 6-1.
Russian Elena Vesnina whipped Croatian Ana Konjuh 6-3, 6-1.