| Time | Date | Name | Meet |
|---|---|---|---|
| 1:06.22 | Feb. 4, 2024 | Maggie Jaeger | IAAM A & B Conference Championship |
| 1:07.69 | Jan. 13, 2024 | Maggie Jaeger | National Catholic High School Championships |
| 1:07.75 | Feb. 6, 2022 | Isabella Klemm | IAAM A & B Conference Championship |
| 1:08.48 | Jan. 15, 2022 | Isabella Klemm | National Catholic Championship |
| 1:09.21 | Feb. 3, 2019 | Shannon Brown | IAAM A&B Conference Championship |
| 1:09.76 | Jan. 19, 2019 | Shannon Brown | National Catholic Swimming & Diving Championship |
| 1:09.88 | Jan. 26, 2013 | Bridget Jordan | 13 National Catholic HS Championship |
| 1:10.90 | Jan. 30, 2010 | Deanna Parsons | NATIONAL CATHOLIC H.S. CHAMPIONSHIPS |
| 1:12.46 | Jan. 26, 2008 | MEGHAN PETERSEN | NATIONAL CATHOLIC H.S. CHAMPIONSHIPS |
| 1:17.65 | Jan. 27, 2007 | RACHEL HARBARGER | NATIONAL CATHOLIC H.S. CHAMPIONSHIPS |
