| Name | Time | Date | Meet |
|---|---|---|---|
| Hannah Miles | 1:04.16 | Feb. 16, 2018 | College Conference of Illinois & Wisconsin Championships |
| Allison Soper | 1:05.42 | Feb. 15, 2013 | 2013 College Conference of Illinois & Wisconsin Championships |
| Allison Soper | 1:06.38 | Feb. 17, 2012 | College Conference of Illinois & Wisconsin Championships |
| Ashley Gladis | 1:08.17 | Dec. 2, 2011 | 2011 Carthage CollegeSwimming Classic |
| Lisa Tiltges | 1:08.39 | Feb. 19, 2010 | College Conference of Illinois & Wisconsin Championships |
| Heather Croix | 1:08.93 | Feb. 20, 2009 | 2009 CCIW Championships |
| Kelli Klepel | 1:09.63 | Feb. 11, 2005 | 2005 CCIW Championships |
| Kelli Klepel | 1:11.00 | Feb. 14, 2003 | CCIW Swimming Championships |
| Kendra Will | 1:15.55 | Feb. 15, 2002 | 2002 CCIW Championships |
