| Mark | Athlete | School | Year | Meet |
|---|
| 38.07 | Colin Dolese | Missoula Hellgate (AA) | 12 | Western Montana Top 10 |
| 38.46 | Chris Lange | Missoula Big Sky (AA) | 12 | State AA |
| 38.79 | Josh Barrows | Helena (AA) | 11 | Helena Crosstown Meet |
| 38.83 | Mick Paffhausen | Beaverhead Co./Dillon (A) | 12 | Western Montana Top 10 |
| 39.49 | Daniel Pendergast | Stevensville (A) | 11 | State A |
| 39.50 | Taylor Trollope | Billings Skyview (AA) | 11 | Eastern AA Divisional |
| 40.00 | Riley Barta | Billings Skyview (AA) | 11 | Gary Benson Border Wars (WY) |
| 40.16 | Keaton Grove | Whitefish (A) | 11 | State A |
| 40.17 | Caleb Neth | Manhattan (B) | 10 | State B |
| 40.27 | Silas Hasselbrook | Loyola Sacred Heart (B) | 12 | Western B Divisional |
| 40.34 | Jadin Casey | Stevensville (A) | 11 | State A |
| 40.41 | Koltin Haugrose | Belt (C) | 10 | State C |
| 40.45 | Zac Allen | Laurel (A) | 11 | State A |
| 40.53 | Kail Pope | Charlo (C) | 12 | Western C Divisional |
| 40.55 | Clay Dean | Butte (AA) | 11 | Skyview Triangular 4/11 |
| 40.73 | Chade Gonter | Flathead (AA) | 11 | State AA |
| 40.93 | Jacob Clairmont | Polson (A) | 10 | Northwestern A Divisional |
| 41.02 | Chance Maes | Missoula Big Sky (AA) | 11 | State AA |
| 41.11 | Tanner Hoff | Hot Springs (C) | 11 | Western C Divisional |
| 41.12 | Kris Cleveland | Hamilton (A) | 12 | Darby-Florence Invitational |
| 41.13 | Jalen Hendrickson | Froid-Medicine Lake (C) | 12 | State C |
| 41.16 | Troy Anderson | Beaverhead Co./Dillon (A) | 9 | MCPS Invitational |
| 41.19 | Connor Gaughan | Billings Senior (AA) | 11 | Skyview Triangular 5/10 |
| 41.21 | Logan Benjamin | Great Falls CMR (AA) | 12 | Great Falls Crosstown Meet |
| 41.30 | Nolan Davis | Helena (AA) | 11 | State AA |
| 41.38 | Gabe McCauley | Sweet Grass Co./Big Timber (B) | 12 | State B |
| 41.45 | Mark Jenkins | Bozeman (AA) | 12 | Eastern AA Divisional |
| 41.45 | Jayson Lundberg | Hardin (A) | 12 | Jock Stop Invitational |
| 41.45 | Jacob Grinwis | Belgrade (AA) | 9 | State A |
| 41.46 | Alex Wilson | Whitefish (A) | 12 | State A |
| 41.49 | Haiden Collins | Fergus/Lewistown (A) | 9 | Jock Stop Invitational |
| 41.49 | Keith Heidema | Manhattan Christian (C) | 12 | Western C Divisional |
| 41.55 | Jared Rubel | Polson (A) | 12 | Polson ABC Meet |
| 41.63 | Tanner Schwartz | Dawson Co./Glendive (A) | 12 | Elks Invitational |
| 41.69 | Michael Delaney | Charlo (C) | 10 | State C |
| 41.79 | Ryan Kasten | Circle (C) | 12 | State C |
| 41.81 | Kier Sanzano | Alberton (C) | 12 | Darby-Florence Invitational |
| 41.84 | Nate Bishop | Victor (C) | 12 | Western C Divisional |
| 41.97 | Johnny Brubaker | Dutton-Brady (C) | 12 | State C |
| 42.18 | Jacob Simpson | Powell Co./Deer Lodge (B) | 11 | State B |
| 42.29 | Jared Schwend | Joliet (B) | 10 | State B |
| 42.56 | Carson Cantrell | Bigfork (B) | 11 | Western B Divisional |