Rex Maurer Drops 4:12.33 500 FR, Tied With Phelps As #2 U.S. 17-18 Swimmer Of All-Time
Maurer tied Michael Phelps's time of 4:12.33 to become the second-fastest 500 freestyler of all-time in the U.S. 17-18 age group.
Source: swimswam.com