| Name | Time | Date | Meet |
|---|---|---|---|
| Catherine Felix | 4:26.19 | July 17, 2010 | – |
| Nicole Menzel | 4:26.77 | June 30, 2007 | Speedo Summer Classic LC Invit |
| Cathryn Collins | 4:32.37 | June 27, 2003 | FL ATAC Long Course Open |
| Cathryn Collins | 4:35.56 | June 13, 2003 | 2003 SUMMER LONG COURSE INVITA |
| Cathryn Collins | 4:40.00 | June 28, 2002 | 2002 ATAC Long Course Open |
