Katie Ledecky broke her own American record and a second NCAA record in a week, winning the 500-yard freestyle at an Ohio State meet Friday.
Ledecky, a Stanford freshman who won four gold medals in Rio, clocked 4:26:46 in the 500-yard free final.
That bettered her American record of 4:26.58 set in February 2015. It also bettered her NCAA record of 4:27.54 set earlier Friday.
Coming into the day, Olympic teammate Leah Smith held the NCAA record of 4:30.37 in the 500-yard free.
Last Saturday, Ledecky demolished Smith’s NCAA record in the 1,000-yard freestyle, an event that is not contested at the NCAA Championships. She lapped the other four swimmers in the race and won by 34.85 seconds.
One NCAA record Ledecky could later take aim at is the 200-yard freestyle. She swam 1:44.18 earlier this season. Missy Franklin holds the NCAA record of 1:39.10.
NCAA meets are held in 25-yard pools, while the Olympics are in 50-meter pools.
The Ohio State meet continues through Sunday.Follow @nzaccardi