CHARLESTON, S.C. -- Second seed Lindsay Davenport advanced to the third round, but No. 8 Patty Schnyder was eliminated Tuesday as rain continued to spoil the $1.3 million Family Circle Cup.

Davenport routed Daja Bedanova, 6-0, 6-1, for her fifth victory over the Czech in as many meetings. It was the American's big serve and huge ground strokes, not the windy conditions, that blew Bedanova off the court.

"I thought I played well today and happy to get through in this weather and be in the third round already," said Davenport, who had not played on clay in two years.

A winner of an indoor event in Japan earlier this year, she looked completely at home on the green clay court, blasting 37 winners.

"The last time I played (on clay) was 2000, and I think I only played one match that year on clay," Davenport said. "It's been since really '99 since I've played a clay-court season, so I was a little unsure of what to expect out there, but I thought I handled it very well."

Davenport, along with the rest of the top eight seeds, received byes into the second round at this event that has had its first two sessions suspended due to rain.

Schnyder was outlasted by Russia's Vera Zvonareva, 6-2, 4-6, 6-4, in a classic clay-court match that featured multiple baseline drop shots, moon balls and lengthy rallies.

Youth prevailed as the 18-year-old Zvonareva won her first match at the Family Circle Cup by knocking last year's finalist from Switzerland.

The damp conditions left the balls heavy, which may have been one explanation for the 14 service breaks and long rallies.

"I didn't really like the conditions (unseasonable cold damp weather) at all," Schnyder said. "The ball was heavy. I love hot weather and the ball bouncing well."

Rain in the afternoon brought about the cancellation of top-ranked Serena Williams' second-round encounter with qualifier Dally Randriantefy of Madagascar. It will be played on Wednesday.

Russian Anna Kournikova took a 2-0 lead over No. 15 Conchita Martinez of Spain before the showers came. Martinez, a two-time champion here, will resume Wednesday.

Williams is 21-0 this season with three titles, including her fourth straight Grand Slam crown at the Australian Open.

No. 11 Meghann Shaughnessy of the United States posted a 6-2, 6-4 first-round victory over qualifier Milagros Sequera of Venezuela.

Shaughnessy is ranked No. 19 this week after reaching the quarterfinals in Miami last month. She captured her third career title at Canberra and appeared in the quarterfinals at the Australian Open in January.

Also, No. 12 Anna Pistolesi of Israel cruised past Belgian qualifier Els Callens, 6-3, 6-1; No. 13 Elena Dementieva of Russia dispatched Iroda Tulyaganova of Uzbekistan, 6-2, 6-2; No. 16 Clarisa Fernandez of Argentina rallied past American wild card Marissa Irvin, 4-6, 6-3, 6-3; and Virginia Ruano Pascual of Spain beat No. 17 Alexandra Stevenson, 6-4, 6-3.

Six matches between unseeded foes took place. Defending champion Iva Majoli of Croatia and former winner Mary Pierce of France were among the winners.

Majoli downed American qualifier Lindsay Lee-Waters, 6-2, 7-5, to improve to 21-9 lifetime at this event. Last year, she became the first unseeded winner at this event when she defeated Schnyder in the final for her first title since her triumph at the French Open in 1997.

The 26-year-old Majoli found the conditions uncomfortable.

"It was so cold, we were able to play in pants actually," she said. "But it's weird to play a real match in long pants, but my knees were freezing. I was like, 'Move,' and I couldn't move. I mean my feet, my knees, everything was so cold, so I was lucky. I mean I was happy actually to get over with this first round."

Pierce showed signs of her old form in a 6-3, 6-3 win over Australia's Nicole Pratt. The former top-five player next faces No. 7 Anastasia Myskina of Russia in the next round. She lost to Myskina at Doha in February.

"It's a different surface, first of all, and I feel like I am playing better than then," Pierce said. "And you know, we'll see. It's a good match for me, and I'll be motivated to try and win."

First prize at this Tier I tournament is $189,000.