| Time | Date | Name | Meet |
|---|---|---|---|
| 51.93 | Dec. 2, 2022 | Daniel Garcia | Calvin Winter Invitational |
| 53.20 | March 11, 2022 | Daniel Garcia | NCAA Division II Championship |
| 53.38 | Dec. 3, 2021 | Daniel Garcia | Calvin Winter Invite |
| 53.77 | April 1, 2021 | Daniel Garcia | GMAC & MEC Championship |
| 55.05 | Feb. 27, 2021 | Daniel Garcia | Findlay vs. Notre Dame College |
| 55.08 | Feb. 22, 2020 | Isaac Stretch | Kenyon College Fast Chance Invitational |
| 55.39 | Dec. 6, 2019 | Isaac Stretch | Calvin Invitational |
| 56.12 | Feb. 23, 2019 | Isaac Stretch | Kenyon Fast Chance Invitational |
| 56.55 | Feb. 14, 2014 | Todo Djurovic | Great Lakes Intercollegiate Athletic Conference |
| 56.75 | Dec. 6, 2013 | Todo Djurovic | Calvin College Invitational |
| 57.65 | Feb. 20, 2009 | Kyle Johnson | Sun Belt Conference Championships - Day Two - Finals |
| 1:07.39 | Oct. 17, 2008 | Jason Chomic | Findlay @Ashland |
