| Name | Time | Date | Meet |
|---|---|---|---|
| Michael Mullen | 4:21.50 | July 28, 2022 | USA Swimming Futures Championship - Cary |
| Jack VanDeusen | 4:24.02 | Aug. 7, 2019 | Speedo Junior National Championships |
| Michael Walker | 4:20.61 | Aug. 5, 2009 | 2009 U. S. Open |
| Michael Hulme | 4:28.08 | July 14, 2007 | 2007 Janet Evans Invitational |
| Michael Hulme | 4:30.17 | March 29, 2007 | 2007 USA Swimming Spring Champ |
| Yi-khy Saw | 4:33.64 | April 1, 2003 | ConocoPhillips National Championships |
| Brandon Cover | 4:44.34 | June 27, 2002 | 2002 Bolles Sharks Long Course |
