Jelena Jankovic wanted a workout in Tuesday's Family Circle Cup match against Edina Gallovits.

She got more than she bargained for.

Jankovic survived a potential knockout punch in the first set and posted a 2-6, 6-4, 6-3 victory over the Romanian the in the Family Circle Cup Stadium.

The Serb was one of seven seeded players to play in the day session, which was brilliant and breezy. The mix of ideal weather and top players on the Sony Ericcson WTA Tour attracted a crowd of 6,122 fans.

"Any match is good, and obviously these kind of matches are good for you just to see where you have to improve for the next round," said Jankovic, the 2007 Family Circle Cup champ and this year's No. 2 seed. "I spent a little bit more (time on the court) than I wanted. I wanted to be on the court not for two hours or three hours. I don't know how long I was there. So it's nice to win in an hour, an hour and a half and save energy. But (these) matches are good for you, and I was happy I was able to win this match. I think Edina is a really good player, and I think on clay, she's really tough to beat."

Tuesday's match, which lasted exactly two hours, was Jankovic's first venture on a clay court this spring. She is making her sixth appearance in Charleston and upped her record to 9-4.

The 25-year-old went over the $10 million mark in career earnings earlier this year.

Gallovits led 2-1 in the third set, but Jankovic rallied to win the next four games.

"I got myself together," Jankovic said of her third-set rally. "I started playing more aggressively, and I cut down on my errors as well. I started moving in a little more on the court, and I started serving better, which was very important, and probably at the end, she got tired. It's the clay courts. You've got to do a lot of running, so it's a lot tougher than playing on hard courts because some of the points are a little longer."

Gallovits said she didn't tire in the third set.

"If anything, I'm in the best shape of my life," she said. "I didn't run out of gas."

Fourth-seed Samantha Stosur also had a tougher match than expected. She edged Magdalena Rybarikova 6-3, 7-5 to reach the third round.

The Australian made her Family Circle Cup debut in 2005, and is making her fourth appearance in Charleston. She had a breakout season in 2009, reaching the semifinal of the French Open.

No. 12 seed Aleksandra Wozniak won her second match in two days to advance to the Round of 16. The Canadian needed three sets to gain a 6-2, 4-6, 6-4 victory over Catalina Castalano of Colombia. Wozniak is making her third appearance in Charleston and evened her Family Circle Cup record at 3-3.

Virginie Razzano, the No. 11 seed, lost a 4-6, 6-0, 6-2 decision to Monique Adamczak.