| Mark | Athlete | School | Year | Meet |
|---|
| 38.47 | Nash Coley | Gallatin (Bozeman) (AA) | 11 | State AA Championship |
| 38.59 | Merek Mihelish | Helena Capital (AA) | 10 | Skor DeKam Invite |
| 38.86 | Ethan Anderson | Glacier (AA) | 10 | State AA Championship |
| 39.06 | Matthew Moreni | Helena Capital (AA) | 12 | Western AA Divisional |
| 39.59 | Colter Petre | Helena (AA) | 12 | Helena Crosstown Meet |
| 39.71 | Treyton Graham | Beaverhead Co./Dillon (A) | 12 | Western A Divisional |
| 39.98 | Johnslee Pierre | Lustre Christian (C) | 9 | State C Championship |
| 40.02 | Adam Schrader | Columbia Falls (A) | 12 | Russ Plicher Top 10 |
| 40.02 | Archie LaFurge | Great Falls CMR (AA) | 12 | Eastern AA Divisional |
| 40.03 | Dylan Root | Jefferson/Boulder (B) | 12 | Russ Plicher Top 10 |
| 40.07 | William Martin | Darby (B) | 12 | State C Championship |
| 40.21 | Dawson Sweat | Broadwater/Townsend (B) | 12 | Russ Plicher Top 10 |
| 40.52 | JD Shepard | Belt (C) | 11 | State C Championship |
| 40.54 | Aiden Read | Corvallis (A) | 12 | Western A Divisional |
| 40.57 | Brody Hardy | Frenchtown (A) | 10 | Western A Divisional |
| 40.72 | Fogaa Fatupaito | Billings Skyview (AA) | 12 | West-Skyview Dual |
| 40.74 | Mitchell Fogelsong | Billings West (AA) | 12 | Billings Public City Meet |
| 40.79 | Rance Hamilton | Manhattan Christian (C) | 10 | Western C Divisional |
| 40.82 | Oliver Simianer | Missoula Big Sky (AA) | 11 | Greg Rice City Meet |
| 40.86 | Bergen Mysse | Belt (C) | 11 | State C Championship |
| 40.88 | Gage Norslien | Fergus/Lewistown (A) | 12 | Eastern A Divisional |
| 40.92 | Evan Barnes | Glacier (AA) | 11 | Western AA Divisional |
| 40.95 | Gavin Mow | Helena Capital (AA) | 10 | Skor DeKam Invite |
| 40.96 | Caleb Stosich | Sweet Grass Co./Big Timber (B) | 10 | State B Championship |
| 40.97 | Carson Krack | Whitefish (A) | 11 | State A Championship |
| 41.06 | Tyce Casterline | Lockwood (A) | 11 | Midland Roundtable Top 10 |
| 41.24 | Wyatt Johnson | Bigfork (A) | 11 | Western B Divisional |
| 41.43 | Wesley Tschacher | Laurel (A) | 12 | State A Championship |
| 41.47 | Spencer Cruse | Hamilton (A) | 12 | State A Championship |
| 41.54 | Kade Newman | Broadwater/Townsend (B) | 11 | State B Championship |
| 41.56 | Stockton Zimdars | Park City (B) | 12 | Harlo/Park City Invite |
| 41.60 | Chase Burrows | Laurel (A) | 12 | State A Championship |
| 41.62 | Colter Fleming | Sweet Grass Co./Big Timber (B) | 12 | State B Championship |
| 41.88 | Troy Kendall | Belgrade (AA) | 12 | Last Chance Qualifier |
| 41.89 | Benji Carlson | Billings Senior (AA) | 12 | Eastern AA Divisional |
| 41.95 | Caleb Litzinger | Great Falls (AA) | 10 | Eastern AA Divisional |