Bella Sims fired off a personal-best 2:12.19 to win the 200 IM on Friday, edging Sandpipers of Nevada teammate Katie Grimes by less than half a second.
13 members of the US Roster for the Jr. Pan Pacs Championships and 16 members of the US roster for the Duel in the Pool will compete in Irvine this week.
Shaine Casas comes into U.S Nationals after posting some blistering times at Austin Sectionals, making him one of the most interesting storylines to follow.