Arizona opened a 13-point lead in the first day of competition at the NCAA Women's Swimming and Diving Championships at University Aquatic Center in Minneapolis. Auburn is in second place with 155 points, followed by Stanford (123.5), California (98), Georgia (86) and Texas A&M (82.5). The Wildcats shattered the American record in the 200 freestyle relay to start the evening and California ended the night by breaking the American record in the 400 medley relay to highlight the first day's competition.

Arizona opened the evening in electrifying fashion in the 200 freestyle relay, breaking their own NCAA record and the American record with a winning time of 1:27.23. The Wildcats' winning team of Lara Jackson, Lacey Nymeyer, Anna Turner and Lindsey Kelly finished over a second ahead of Georgia's second place time of 1:28.44. Michigan touched third in 1:28.80, followed by Auburn, Stanford and Texas A&M.

Auburn senior Adrienne Binder won the title in the 500 freestyle in 4:36.96, just ahead of Florida junior Caroline Burckle (4:38.28). Binder dropped almost four seconds off her prelim time to pick up the win. Princeton freshman Alicia Aemisegger placed third in 4:38.88, followed by Auburn's Hayley Peirsol (4:41.96) and Georgia's Claire Maust (4:42.18).

Arizona's Whitney Myers defended her NCAA 200 individual medley crown in 1:54.89, holding off Auburn's Ava Ohlgren, who touched the wall in 1:55.67. Stanford's Julia Smit finished third in 1:56.43 while Auburn's Emily Kukors took fourth in 1:57.13. Stanford's Emily Breeden was fifth in 1:58.03.

Georgia's Kara Lynn Joyce completed a career sweep of the 50 freestyle, winning the crown for the fourth straight year in 21.71. She was pushed hard by Arizona's Lara Jackson, who finished just .02 seconds behind. Another Wildcat, Lacey Nymeyer placed third in 21.80 and California's Emily Silver was fourth in 21.99. Stanford's Brooke Bishop and Texas A&M's Triin Aljand tied for fifth in 22.17. The Wildcats picked up 35 points in the event to take the team lead with 134 points, just seven ahead of Auburn.

Stanford's Cassidy Krug moved up from sixth after the prelims of the 1-meter diving event to win with a finals score of 361.55. She edged Indiana's Christina Luokas, who tallied a score of 360.35. Miami's Jenna Dreyer led after the prelims with a score of 345.60, but fell to third with a finals score of 350.55. Purdue's Amanda Miller took fourth (340.20) and Houston's Nastia Podzniakova was fifth (338.40).

California ended the evening with a dramatic American record swim in the 400 medley relay. Cal's team of Lauren Rogers, Jessica Hardy, Dana Vollmer and Emily Silver crushed the previous American mark by 1.5 seconds in 3:30.18. They broke the mark of 3:31.74 set by Stanford in 2002. Arizona also broke the previous mark with a second place time of 3:30.89. Stanford was a distant third in 3:34.86, followed by Florida (3:35.72) and Texas (3:35.74).