| Name | Time | Date | Meet |
|---|---|---|---|
| Carter Grimes | 4:21.45 | July 27, 2018 | Phillips 66 Summer National Championships |
| Carter Grimes | 4:24.76 | Aug. 4, 2016 | Toyota US Open |
| Hannon Daigler | 4:25.78 | Aug. 9, 2011 | Speedo Junior National Championships |
| Hannon Daigler | 4:28.22 | Aug. 2, 2011 | 2011 ConocoPhillips National Championships |
| Jakers Priest | 4:31.84 | Aug. 11, 2009 | 2009 Speedo Junior National Championships |
| Jakers Priest | 4:39.89 | June 7, 2008 | Janet Evans Invitational |
| Cody Miller | 4:51.64 | May 26, 2007 | CA NOVA Speedo Grand Challenge |
| Matt Irwin | 4:53.10 | June 19, 2003 | CA MVN TYR Swim Meet of Champions |
