Men's 400 IM - B Final
World Record: Leon Marchand, 4:02.50
American Record: Michael Phelps, 4:03.84
U.S. Open Record: Michael Phelps, 4:05.25
Meet Record: Leon Marchand, 4:07.80
2025 TYR Pro Swim Series Westmont:
Carson Foster, 4:09.51
Click on the athlete's name below to view their bio.
| Name | Prelims Time |
|---|---|
| Gabo Arias Lane 2 | 4:54.43 |
| Karsten Eichler Lane 3 | 4:49.29 |
| Justin Ferrer Lane 4 | 4:46.83 |
| Adam Becker Lane 5 | 4:48.04 |
| Shep Camp Lane 6 | 4:53.78 |
| Tommy Jiang Lane 7 | 5:05.86 |