| Name | Time | Date | Meet |
|---|---|---|---|
| Jack Dahlgren | 47.52 | March 2, 2018 | MSHSL Boys Class AA State Championship |
| Jack Dahlgren | 48.28 | March 3, 2017 | 2017 Minnesota Boys Class AA State Championships |
| Jack Dahlgren | 49.18 | Feb. 22, 2017 | 2017 MSHSL Boys Section 2AA Championships |
