| Mark | Athlete | School | Year | Meet |
|---|
| 21.88 | Thomas Carter | Helena Capital (AA) | 11 | State AA |
| 22.04 | Evan Major | Belgrade (AA) | 12 | State AA |
| 22.06 | Taco Dowler | Billings West (AA) | 12 | Gary Benson Border War (WY) |
| 22.15 | Nikolas Udstuen | Gallatin (Bozeman) (AA) | 12 | State AA |
| 22.49 | Jackson Hensley | Glacier (AA) | 11 | Russ Plicher Top 10 |
| 22.58 | Tommy Bossenbrook | Bozeman (AA) | 12 | Eastern AA Divisional |
| 22.61 | Reed Harris | Great Falls (AA) | 11 | Helena-Great Falls-Jefferson Tri |
| 22.64 | Jase Applebee | Bozeman (AA) | 12 | Eastern AA Divisional |
| 22.78 | Tanner Macy | Billings Senior (AA) | 11 | Billings City Meet |
| 22.83 | Jared Felten | Billings Senior (AA) | 11 | Eastern AA Divisional |
| 22.84 | Dilen Barington-Miller | Billings Senior (AA) | 12 | Eastern AA Divisional |
| 22.88 | Tristin Shanks | Great Falls CMR (AA) | 12 | Eastern AA Divisional |
| 22.88 | Karsen Beitz | Missoula Sentinel (AA) | 11 | Western AA Divisional |
| 22.95 | Noah Dahlke | Gallatin (Bozeman) (AA) | 12 | Eastern AA Divisional |
| 22.99 | Coltre Petre | Helena (AA) | 11 | Helena-Great Falls-Jefferson Tri |
| 23.00 | Carson Anderson | Helena (AA) | 11 | Helena-Great Falls-Jefferson Tri |
| 23.01 | Connor Sullivan | Glacier (AA) | 12 | Western AA Divisional |
| 23.13 | Justin Timlick | Glacier (AA) | 10 | Glacier-Columbia Falls Dual |
| 23.13 | Luke Beiergrohslein | Billings West (AA) | 10 | Eastern AA Divisional |
| 23.19 | Adam Ryland-Davis | Helena (AA) | 11 | Helena-Great Falls-Jefferson Tri |
| 23.20 | Jake Turner | Glacier (AA) | 12 | Sentinel-Glacier-Loyola Tri |