| Time | Date | Name | Meet |
|---|---|---|---|
| 49.51 | March 3, 2017 | William Brenton | Minnesota Boys Class A State Championships |
| 49.62 | March 3, 2016 | William Brenton | Minnesota Boys Class A State Championships |
| 52.54 | March 7, 2015 | William Brenton | 15 Minnesota Boys Class A Sectional Championships (All) |
| 54.16 | March 1, 2013 | Mitchell Miller | 13 Minnesota Boys A Championships |
| 55.21 | Feb. 16, 2012 | Mitchell Miller | 12 Minnesota Boys - Best Times |
| 55.89 | March 3, 2011 | Mitchell Miller | 11 Minnesota Boys High School Best Times |
| 59.58 | March 5, 2010 | Mitchell Miller | 10 Minnesota Boys A State Championships |
