| Name | Time | Date | Meet |
|---|---|---|---|
| Austin Smith | 1:48.06 | Nov. 16, 2023 | Augie Invitational |
| Austin Smith | 1:48.18 | Feb. 23, 2023 | Summit League Championships |
| Cayden Christianson | 1:50.27 | April 15, 2021 | Summit League Championships |
| Cayden Christianson | 1:50.45 | March 26, 2021 | Coyote Invitational |
| Christopher Schreier | 1:51.78 | Feb. 16, 2012 | Summit League Championships |
| Christopher Schreier | 1:51.95 | Feb. 17, 2011 | Summit League Championships |
| Christopher Schreier | 1:55.43 | Dec. 3, 2010 | Hawkeye (Iowa) Invitational |
| Mark Garrigues | 1:56.39 | Nov. 18, 2005 | 2005 Minnesota Invitational |
