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| Time | Date | Name | Team | Meet |
|---|---|---|---|---|
| 52.64 | March 20, 2014 | Kirsten Nitz | Wheaton College (Illinois) | NCAA Division III Championships |
| 53.06 | Feb. 15, 2013 | Kirsten Nitz | Wheaton College (Illinois) | College Conference of Illinois & Wisconsin Championships |
| 54.14 | Dec. 1, 2012 | Kirsten Nitz | Wheaton College (Illinois) | Wheaton (IL) Invitational |
| 55.29 | Nov. 3, 2012 | Kirsten Nitz | Wheaton College (Illinois) | Wheaton (IL) vs. Calvin |
| 56.34 | Nov. 2, 2012 | Kirsten Nitz | Wheaton College (Illinois) | UW-Milwaukee vs. Wheaton (IL) |
| 56.87 | Feb. 18, 2011 | Katie McHugh | Illinois Wesleyan University | College Conference of Illinois & Wisconsin Championships |
| 56.96 | Feb. 19, 2010 | Katie McHugh | Illinois Wesleyan University | College Conference of Illinois & Wisconsin Championships |
| 58.13 | Feb. 15, 2002 | Maureen Szweda | North Central College | CCIW Championships |
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