| Mark | Athlete | School | Year | Meet |
|---|
| 21.59 | Ryan Dierenfield | Billings Skyview (AA) | 11 | Eastern AA Divisional |
| 21.60 | Jackson Tarver | Great Falls CMR (AA) | 12 | CMR-Capital Dual |
| 21.71 | Ben Bliven | Flathead (AA) | 11 | State AA Championship |
| 22.03 | Nash Coley | Gallatin (Bozeman) (AA) | 12 | Eastern AA Divisionals |
| 22.08 | Brody Thornsberry | Flathead (AA) | 12 | State AA Championship |
| 22.17 | Ryan LaMere | Billings Senior (AA) | 12 | Eastern AA Divisional |
| 22.21 | Titus Sykes | Bozeman (AA) | 12 | Eastern AA Divisional |
| 22.21 | Osker Patterson | Gallatin (Bozeman) (AA) | 12 | Eastern AA Divisionals |
| 22.30 | Caleb Conver | Billings West (AA) | 11 | Eastern AA Divisional |
| 22.30 | Charlie Babcock | Billings West (AA) | 11 | Billings West Triangular 4/5 |
| 22.40 | Hudson Lembke | Missoula Sentinel (AA) | 12 | Russ Plicher Western Top 10 |
| 22.43 | Ethan Anderson | Glacier (AA) | 11 | Archie Roe Invitational |
| 22.45 | William Hollensteiner | Flathead (AA) | 10 | Last Chance Quad |
| 22.46 | Drew Almquist | Helena Capital (AA) | 9 | Helena Small Schools Meet |
| 22.50 | Cooper Nelson | Helena Capital (AA) | 11 | CMR-Capital Dual |
| 22.54 | Jacob Dolezal | Flathead (AA) | 12 | Last Chance Quad |
| 22.60 | Wilson Schmidt | Belgrade (AA) | 10 | Eastern AA Divisionals |
| 22.61 | Kash Goicoechea | Glacier (AA) | 12 | Western AA Divisionals |
| 22.63 | Luke Ruch | Helena (AA) | 11 | Western AA Divisional |
| 22.66 | Cole Zeigler | Missoula Hellgate (AA) | 11 | Greg Rice City Meet |
| 22.67 | Jacob Paugh | Missoula Big Sky (AA) | 12 | MCPS Invitational |
| 22.71 | Lucas Kadillak | Bozeman (AA) | 11 | Eastern AA Divisional |
| 22.76 | Keith Applebee | Bozeman (AA) | 12 | Eastern AA Divisional |
| 22.79 | Lance Baumgart | Helena Capital (AA) | 12 | CMR-Capital Dual |
| 22.84 | Aidan Johnson | Billings West (AA) | 12 | Eastern AA Divisionals |
| 22.85 | Rueso Batterman | Butte (AA) | 12 | Swede Dahlberg Invitational |
| 22.92 | Merek Mihelish | Helena Capital (AA) | 11 | Helena Small Schools Meet |
| 22.92 | Calvin Paczkowski | Billings West (AA) | 10 | Billings West Meet 4/23 |
| 22.99 | Oak Sullivan | Bozeman (AA) | 12 | Bozeman Quad |
| 23.03 | Carter Dahlke | Gallatin (Bozeman) (AA) | 10 | Gallatin-CMR Dual |
| 23.03 | River Wasson | Great Falls CMR (AA) | 12 | Eastern AA Divisional |
| 23.04 | Peyton Nelson | Helena Capital (AA) | 12 | Capital-Butte Dual |
| 23.04 | Christian Alexander | Billings West (AA) | 10 | Eastern AA Divisional |
| 23.07 | Pacer Lybbert | Helena (AA) | 10 | Skor Dekam Invitational |
| 23.09 | Christian Heck | Gallatin (Bozeman) (AA) | 12 | Eastern AA Divisional |
| 23.13 | Harrison Banderob | Billings Senior (AA) | 11 | Eastern AA Divisional |
| 23.15 | Ryan Martinie | Helena Capital (AA) | 11 | CMR-Capital Dual |
| 23.18 | Steele Harris | Great Falls (AA) | 9 | Skor Dekam Invitational |
| 23.18 | Ethan DeLeon | Billings Senior (AA) | 10 | Eastern AA Divisional |
| 23.19 | Kale Konecny | Billings Senior (AA) | 11 | Eastern AA Divisional |
| 23.19 | Ulrich Warner | Glacier (AA) | 11 | Archie Roe Invitational |