| Time | Date | Name | Meet |
|---|---|---|---|
| 51.02 | Feb. 23, 2019 | Denise Quentin | Kenyon Fast Chance Invitational |
| 51.28 | Feb. 16, 2019 | Denise Quentin | Great Midwest-Mountain East Conference Championship |
| 52.16 | Dec. 1, 2018 | Denise Quentin | Wooster Invitational |
| 52.73 | Feb. 15, 2014 | Stephanie Brookens | Great Lakes Intercollegiate Athletic Conference |
| 53.13 | Feb. 9, 2013 | Stephanie Brookens | Great Lakes Intercollegiate Athletic Conference |
| 54.65 | Oct. 26, 2012 | Stephanie Brookens | Defiance vs. Malone, Mount Union |
| 56.09 | Oct. 13, 2012 | Stephanie Brookens | Denison vs. Malone |
| 58.01 | Oct. 29, 2011 | Allison Byrd | West Virginia Wesleyan vs. Malone, Oberlin |
| 58.66 | Feb. 18, 2011 | Chelsea Perry | Appalachian Swimming Conference |
| 1:00.87 | Feb. 17, 2011 | Jacklyn Perkins | Appalachian Swimming Conference |
| 1:03.00 | Nov. 20, 2010 | Lora Huffman | John Carroll Invite |
| 1:05.52 | Oct. 15, 2010 | Lora Huffman | Christian College Invitational |
| 1:05.78 | Feb. 20, 2010 | Michelle Wagner | Last Chance Meet: Kenyon |
| 1:14.53 | Oct. 17, 2009 | Katrina Carosello | Ashland vs. Hillsdale, Malone |
