| Time | Date | Name | Meet |
|---|---|---|---|
| 27.89 | March 9, 2023 | Madyson Morse | CSCAA National Invitational Championships |
| 29.01 | Nov. 16, 2018 | Jensen Keck | Northwestern TYR Invitational |
| 30.13 | Jan. 27, 2018 | Jensen Keck | Illinois State vs. Wabash, WashU |
| 30.64 | Jan. 31, 2015 | Courtney Taylor | Evansville vs. Illinois State |
| 30.86 | Jan. 24, 2015 | Rachel Holm | Illinois State vs. Nebraska-Omaha |
| 31.15 | Oct. 5, 2013 | Courtney Taylor | Illinois State Intrasquad |
| 31.21 | Oct. 6, 2012 | Morgan Buechele | Illinois State Intrasquad |
