Kate Douglass beat Lilly King in the 200 breaststroke by more than two seconds, taking down Emily Escobedo's U.S. Open meet record from 2019 in the process.
Regan Smith destroyed her 200 back/200 fly double on Saturday, winning both events by more than two seconds and setting a pair of U.S. Open meet records.
"I was not expecting that," Siobhan Haughey said after her 100 breast win. "I don't swim the 100 breast that often, so I was really surprised by the time."
World record holder Summer McIntosh is top seed in the 400 IM and aims to double up on event wins and meet records after winning the 400 free yesterday.