ATLANTA (AP) Kelsi Worrell had just enough energy left to finish a stellar performance in the 100-yard butterfly.
''My hamstrings really hurt on the last lap,'' she said. ''That's not something I was used to, but I'm really excited. We've trained really hard for this. Everyone that was here really earned their spot.''
Worrell and Indiana's Lilly King each set national records and Georgia stayed atop the team standings at the NCAA swimming and diving championships on Friday night.
With one day left in the event, the Bulldogs have 285 points. California is second with 267.5 points, Stanford third with 265, Texas A&M fourth with 201.5 and Virginia fifth with 196.
Worrell swam the 100 butterfly in 49.43 seconds, beating her own American and NCAA records by 0.38 of a second. Eyeing the U.S. Olympic trials this summer, Worrell finished over a full second better than runner-up Sarah Gibson of Texas A&M.
King, a freshman, broke the American and NCAA records in the 100 breaststroke twice in the same day, swimming the preliminaries in 57.15 and the final in 56.85.
''I've been thinking about it all season,'' she said. ''It's just settling in right now. Pretty cool.''
Ella Eastin of Stanford easily won the 400 individual medley in 3:58.4, over 5 seconds better than runner-up Lindsey Clary of Ohio State. The freshman set American and NCAA records in winning the 200 IM on Thursday.
Georgia's Brittany MacLean won the 200 freestyle in 1:42.42. With 20 points from MacLean, the Bulldogs also had Hali Flickinger finish fourth and Meaghan Raab take ninth as they picked up 44 points in the event.
Cal's Rachel Bootsma, who earned a gold medal at the 2012 London Games for the U.S. 400-meter relay team, won the 100 backstroke in 50.28 for her third national title in the event.
Bootsma had to go to a nearby emergency room late Thursday night for an undisclosed reason, but said she felt fine Friday and was ready to compete.
''I wasn't feeling like myself,'' Bootsma said. ''I wanted to make sure everything was OK.''
She will race in the 100 freestyle on Saturday as Cal tries to win its second straight national championship and fourth in six years under coach Teri McKeever.
''Whatever happens tomorrow, I'm going to be so proud of this team,'' Bootsma said. ''We've had kind of a different, challenging but also a special year.''
Stanford's foursome of Ally Howe, Sarah Haase, Janet Hu and Lia Neal won the 200 medley in 1:34.81. The Cardinal earned their record 13th title in the event.
Nevada's Sharae Zheng won the springboard diving events in 3-meter Friday and the 1-meter Thursday.