| Time | Date | Name | Meet |
|---|---|---|---|
| 50.35 | Feb. 19, 2022 | Finn Heneghan | Midwest Conference Championships |
| 50.69 | Feb. 18, 2022 | Finn Heneghan | Midwest Conference Championships |
| 51.31 | Dec. 4, 2021 | Finn Heneghan | Carthage College Classic Invitational |
| 51.58 | Nov. 19, 2021 | Finn Heneghan | Kenyon Total Performance Invitational |
| 51.64 | Feb. 15, 2020 | Ben Stolberg | - |
| 51.64 | Feb. 15, 2020 | Ben Stolberg | Midwest Conference Championships |
| 52.21 | Feb. 14, 2020 | Ben Stolberg | Midwest Conference Championships |
| 54.80 | Jan. 18, 2020 | Ben Stolberg | St Norbert College vs. Ripon |
| 54.84 | Jan. 17, 2020 | Ben Stolberg | St Norbert College vs. Carroll |
| 55.19 | Jan. 4, 2020 | Ben Stolberg | MKE vs SNC |
| 55.32 | Feb. 2, 2019 | Ben Stolberg | St. Norbert vs. Lake Forest |
| 57.61 | Jan. 12, 2019 | Jed Galutira | Beloit vs. St. Norbert, UW-Oshkosh |
| 57.68 | Dec. 8, 2018 | Jed Galutira | Carroll vs. St. Norbert |
| 57.70 | Nov. 10, 2018 | Jed Galutira | St. Norbert vs. Lawrence |
| 58.22 | Oct. 30, 2018 | Jed Galutira | Saint Mary's vs. Saint Norbert |
