Sports briefs: Franklin wins sixth gold at world swimming championships

Swimming • Missy Franklin claimed her record sixth gold medal of the world championships Sunday in Barcelona, Spain, swimming the leadoff leg for the Americans in the 400-meter medley relay.

Franklin gave the U.S. a slight lead, and her teammates — Jessica Hardy, Dana Vollmer and Megan Romano — made it look easy from there. The winning time was 3 minutes, 53.23 seconds, nearly two seconds ahead of runner-up Australia. She became the winningest female swimmer ever at the worlds, eclipsing the women's record that had had been shared by Tracy Caulkins, who won five times at the 1978 worlds, and Libby Trickett, who did it in 2007.

"I still can't really believe that it happened," Franklin said.

The men appeared to have an easy victory in their 400 medley relay, but 19-year-old breaststroker Kevin Cordes, the least experienced member of the foursome, left too soon on the exchange between the first and second legs.

The U.S. team, which touched nearly 11/2 seconds ahead of France, was disqualified. The French moved up to take the gold, while the silver went to Australia and Japan snatched the bronze.

Stosur earns first title in two years

TENNIS • Sam Stosur won the Southern California Open for her first title in nearly two years, beating top-seeded Victoria Azarenka 6-2, 6-3 in Carlsbad, Calif.

• Eventually solving John Isner's big serve, top-seeded Juan Martin del Potro won his third Citi Open title and 14th consecutive match at the hard-court tournament by winning Sunday's final 3-6, 6-1, 6-2 in Washington.

Kimball gets past Pagenaud for win

Auto Racing • Charlie Kimball slipped by Simon Pagenaud with 18 laps remaining and pulled away to win the Indy 200 in Lexington, Ohio.

Racing in a backup car after wrecking in practice Saturday morning, Kimball beat Pagenaud to the finish line by more than 5 seconds for his first career IndyCar victory. Pagenaud held on for second. Dario Franchitti was third, followed by Will Power and Ryan Hunter-Reay.

From wire reports