Melbourne, Australia (SportsNetwork.com) - Reigning Wimbledon champion and fourth-seeded Petra Kvitova and No. 8 Caroline Wozniacki were among the early winners on Day 2 at the Australian Open.

Kvitova recorded her 65th career Grand Slam victory with a 6-1, 6-4 decision over Richel Hogenkamp.

Wozniacki, runner-up at last year's U.S. Open, held off American Taylor Townsend 7-6 (7-1) in the opening set, then cruised in the second by a 6-2 score for the win.

Last year's runner-up Dominika Cibulkova fell behind early, but the 11th- seeded Slovakian rallied to beat Kirsten Flipkens 3-6, 6-3, 6-1.

In other seeded action Tuesday, American Madison Brengle ousted No. 13 Andrea Petkovic 5-7, 7-6 (7-4), 6-3; 19th-seeded Alize Cornet defeated Zhang Shuai 6-3, 6-2; No. 20 American Samantha Stosur beat Monica Niculescu 6-4, 6-1; No. 24 Garbine Muguruza topped Marina Erakovic, 7-5, 6-0; 25th-ranked Barbora Zahlavova Strycova overcame Timea Babos, 6-4, 6-4; No. 26 Elina Svitolina def. Jana Cepelova, 6-3, 7-5 and 29th-seeded Casey Dellacqua cruised past Yvonne Meusburger, 6-4, 6-0.

Several other women moved on, including Coco Vandeweghe, Irina Falconi, Tereza Smitkova, Kai-Chen Chang, Victoria Azarenka, Tsvetana Pironkova, Denisa Allertova, Daniela Hantuchova, Vera Zvonareva and Nicole Gibbs.