Auckland, New Zealand (Sports Network) - Top-seeded Agnieszka Radwanska was a straight-set winner on Thursday to advance to the semifinals of the ASB Classic tennis event.
Poland's Radwanska rolled past Russia's Elena Vesnina 6-3, 6-3 on the hardcourts at ASB Tennis Centre, despite a lengthy rain delay early in the second set.
Jamie Hampton awaits Radwanska in the semifinals after the 22-year-old American earned a 6-1, 6-7 (5-7), 6-2 victory against Kiki Bertens of the Netherlands.
Yanina Wickmayer, the third seed out of Belgium, advanced on Thursday with a 6-3, 6-4 victory over compatriot Kirsten Flipkens.
Wickmayer will face another fellow Belgian in the semifinals when she takes on eighth-seeded Mona Barthel, who cruised past Switzerland's Johanna Larsson 6-2, 6-1 to advance to the final four.
This event serves as a tune-up for the Australian Open, which starts January 14.