| Name | Time | Date | Meet |
|---|---|---|---|
| Kayla Han | 4:06.20 | Dec. 8, 2023 | Speedo Winter Junior Championship East |
| Alex Shackell | 4:08.99 | Nov. 3, 2023 | IN CSC Fall Frenzy |
| Alex Shackell | 4:10.49 | Oct. 28, 2022 | 2022 IN CSC Fall Frenzy |
| Kelly Pash | 4:10.97 | Dec. 8, 2017 | Speedo Winter Junior Championships - East |
| Sammie Burchill | 4:11.16 | Dec. 9, 2016 | Speedo East Winter Junior Nationals |
| Sammie Burchill | 4:14.27 | March 11, 2016 | Indiana Senior State Championships |
| Sammie Burchill | 4:16.97 | Dec. 12, 2014 | Speedo WInter Junior Championships |
| Trish Regan | 4:21.91 | Dec. 11, 2009 | Speedo Junior Nationals |
| Kiley Gooch | 4:27.48 | March 6, 2003 | American Short Course Championships |
