Tonight, for the first time in the five-day U.S. Swimming National Championships, both Hayley and Aaron Peirsol are likely to compete in finals at Irvine High, beginning at 5:30.
Hayley Peirsol, a former standout at Newport Harbor High, will compete in the 800-meter freestyle final after qualifying third with a time of 8 minutes, 35.64 seconds on Friday.
Kate Ziegler had the top qualifying time (8:25.31), followed by Adrienn Binder (8:35.50).
The top eight in the preliminaries of each event move on to the championship final.
Hayley Peirsol was third in the 400 free on Tuesday.
Aaron Peirsol, also a former standout for the Sailors, is not assured of competing in the 200 backstroke final because he has to qualify in the preliminaries at 9:21 a.m.