In the last two nights, Chase Kalisz set a personal best in the 200m breaststroke and posted the fastest time in the world this year in the 400m individual medley in Atlanta.
Kalisz, the Olympic 400m IM silver medalist, is setting up well for the U.S. Championships next month and the world championships in Budapest in July.
On Friday, Kalisz won the 200m breast in 2:10.74, lowering his personal best in the event at a second straight meet. Kalisz came into the year with a 200m breast best of 2:12.43 from 2014.
Kalisz rarely races the 200m breast and might not contest it at nationals, where the top two per event qualify for worlds.