| Time | Date | Name | Meet |
|---|---|---|---|
| 3:58.56 | Aug. 2, 2023 | Diego Nosack | Speedo Junior National Championships |
| 3:59.50 | March 10, 2012 | Cameron Stitt | Speedo Champions Series - Federal Way |
| 4:05.70 | Aug. 9, 2005 | Sean O'Keefe | USA Swimming Junior Championship |
| 4:10.82 | Aug. 3, 2003 | Matt Morton | PC WEST Far West Championships |
| 4:16.51 | June 19, 2003 | Garth Summers | CA MVN TYR Swim Meet of Champions |
