Ledecky shatters own world record

Olympic gold medalist Katie Ledecky broke her own world record by exactly five seconds in the 1,500-meter freestyle Wednesday. The Maryland native finished with a time of 15 minutes, 20.48 seconds. Her previous best was 15:25.48 on Aug. 4, 2005 and was more than 49 seconds ahead of second-place Erica Sullivan in the heat. Ledecky is making her pro debut at the TYR Pro Series meet in Indianapolis. The meet continues through Saturday.