Bolles' Caeleb Dressel, 16, took down a legendary 15-16 U.S. National Age Group record in the event with a victorious time of 43.29. That performance bettered Joe Hudepohl's 43.83 set way back in 1990, but just fell short of Vlad Morozov's meet record of 43.27 from 2009. North Texas' Brett Ringgold took second in 43.44 this evening, while Bolles' Santo Condorelli placed third in 43.70.