Chloe Sutton won the 1,500-meter freestyle and Chad LaTourette took the 800 free on opening night of the Charlotte UltraSwim Grand Prix meet.
Sutton touched first in 16 minutes, 23.96 seconds Thursday night at the Mecklenburg County Aquatic Center. Ashley Twichell was second in 16:25.25 and Andreina Pinto was third in 16:38.64.
LaTourette won the men's race in 7:58.91. Connor Jaeger was second at 8:00.81 and Sean Ryan third at 8:07.43.
Michael Phelps, Ryan Lochte, Natalie Coughlin and Rebecca Soni are among the top swimmers competing in the four-day meet that ends Sunday.