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| Time | Date | Name | Team | Meet |
|---|---|---|---|---|
| 43.55 | March 11, 2016 | Cameron Craig | Monroe High School | Michigan Boys Division 1 State Championships |
| 43.90 | March 7, 2014 | Tabahn Afrik | West Ottawa High School | 14 Michigan State Championships - Boys Division 1 |
| 44.29 | March 3, 2014 | Tabahn Afrik | West Ottawa High School | 14 Michigan Boys Best Times |
| 44.62 | March 12, 2010 | Michael Wynalda | Grandville High School | 10 Michigan Boys Division 1 Championships |
| 45.69 | March 13, 2009 | Eric Solis | Holland High School | Michigan Boys Division 2 Championships |
| 46.07 | March 7, 2008 | Sam Hoekstra | Grandville High School | MHSAA Boys Division 1 Championships |
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