| Name | Time | Date | Meet |
|---|---|---|---|
| Shaun Casey | 4:17.84 | July 31, 2013 | 2013 U.S. Open Swimming Championships |
| Sara McLarty | 4:14.66 | July 9, 2003 | 2003 Speedo Champions Series - Fort Lauderdale |
| Elizabeth White | 4:30.92 | June 28, 2002 | 2002 ATAC Long Course Open |
| Ginny Grams | 5:38.03 | June 14, 2002 | 2002 FL TPA Summer LC Invite |
