| Name | Time | Date | Meet |
|---|---|---|---|
| Zara Kocak | 5:00.94 | March 21, 2024 | NCSA Spring Championships |
| Zoe Summar | 5:04.18 | Aug. 3, 2018 | ISCA Summer Senior Championship |
| Riley Gaines | 5:06.71 | June 23, 2017 | 2017 SE Excel Aquatics Firecracker |
| Kim Davis | 5:10.61 | Dec. 7, 2008 | 2008 USA Swimming LCM Time Trials |
| Kim Davis | 5:16.79 | June 29, 2007 | Speedo Summer Classic LC Invit |
