| Name | Time | Date | Meet |
|---|---|---|---|
| Clarice Bernett | 1:03.21 | Feb. 14, 2015 | 2015 Midwest Conference Championships |
| Victoria Kassabaum | 1:03.67 | Feb. 19, 2011 | Midwest Conference Championships |
| Emilie Perrot | 1:05.80 | Jan. 15, 2010 | Grinnell Invitational |
| Krista Ahlberg | 1:13.94 | Nov. 15, 2008 | 2008 Monmouth Invitational |
