PARIS - Maybe this is progress for Andy Roddick on clay: He lost serve seven times Thursday and still won.

On a rainy, chilly day at Roland Garros, Roddick endured two delays and difficult conditions to defeat Blaz Kavcic, 6-3, 5-7, 6-4, 6-2.

The damp weather took some zip off Roddick's biggest weapon, and for much of the match he was dueling from the baseline on his worst surface. But Roddick has become a more patient player in recent months, and he willingly settled into rallies that often lasted more than two dozen shots.

"It was brutal for me out there," he said. "I couldn't get my serve to go anywhere, and the ball was just sitting up. It kind of takes away a lot of shots and it makes it just about hitting the ball and running. . . .

"I don't know the last time I lost serve seven times and won. So, I mean, it's bad, but there's got to be something good in there somewhere, too."

Roddick hadn't played a match on clay this year when he arrived in Paris, but he's now above .500 lifetime at Roland Garros - 9-8.

Ana Ivanovic hit another low in her slide since winning the French Open two years ago, losing in the second round to No. 28 Alisa Kleybanova, 6-3, 6-0.

A former No. 1 player, Ivanovic was unseeded because she's ranked only 42d. The defeat marked her earliest exit in six trips to the French Open.

"It was a combination of a few things," Ivanovic said. "I don't think I played that bad, actually. For a while, I think she didn't miss a ball at all."

The match lasted barely an hour - brief enough to be completed between showers. Play was delayed for 41/2 hours at the start, and there were two later interruptions.

In other women's matches, No. 4-seeded Jelena Jankovic, No. 5 Elena Dementieva and No. 11 Li Na won, while 39-year-old Kimiko Date Krumm lost to Jarmila Groth, 6-0, 6-3.

Date Krumm became the oldest woman since 1985 to reach the second round when she upset former No. 1 Dinara Safina, the runner-up in 2008 and 2009.

Three seeded women lost: No. 8 Agnieszka Radwanska, No. 21 Vera Zvonareva and No. 32 Kateryna Bondarenko.

Radwanska was upset by Yaroslava Shvedova, 7-5, 6-3. Zvonareva lost to Anastasia Rodionova, 6-4, 6-4. Bondarenko was beaten by Aleksandra Wozniak, 6-4, 6-1.

On the men's side, No. 4 Andy Murray beat Juan Ignacio Chela, 6-2, 6-7 (5), 6-3, 6-2. American John Isner, seeded 17th, hit 38 aces and defeated Marco Chiudinelli, 6-7 (3), 7-6 (3), 7-6 (7), 6-4.

The only seeded man to lose was No. 13 Gael Monfils, who lost to Fabio Fognini, 2-6, 4-6, 7-5, 6-4, 9-7. The match had been suspended because of darkness Wednesday at 5-all in the fifth set.