| Mark | Athlete | School | Year | Meet |
|---|
| 38.11 | Casey Gunlikson | Sweet Grass Co./Big Timber (B) | 12 | State B |
| 38.90 | Bradley Graves | Huntley Project (B) | 12 | State B |
| 38.98 | Drew Deck | Glacier (AA) | 11 | State AA |
| 39.32 | Jace Dewalt | Missoula Sentinel (AA) | 12 | State AA |
| 39.42 | Camas Rinehart | Flathead (AA) | 11 | MCPS Invitational |
| 39.43 | Peter Demars | Billings West (AA) | 12 | State AA |
| 39.48 | Jacob Jessen | Winnett-Grass Range (C) | 11 | State C |
| 39.55 | Chris Hust | Huntley Project (B) | 12 | State B |
| 39.83 | Lee Walburn | Whitefish (A) | 12 | State A |
| 40.06 | Chris Abell | Laurel (A) | 12 | State A |
| 40.31 | Benjamin Tuinstra | Valley Christian (C) | 12 | State C |
| 40.37 | Cutter Thatcher | Butte Central (A) | 11 | Western A Divisionals |
| 40.47 | Garrett Cayer | Richey-Lambert (C) | 12 | State C |
| 40.51 | Quinn Sullivan | Butte (AA) | 11 | State AA |
| 40.62 | Caden Olsen | Billings Skyview (AA) | 11 | Midland Roundtable Top 10 |
| 40.72 | Aidan Barrows | Custer Co./Miles City (A) | 11 | State A |
| 40.85 | Camden Capser | Billings Central (A) | 10 | Class A Eastern Divisionals |
| 40.94 | Jeremiah Wamsley | Helena Capital (AA) | 12 | Capital/Great Falls/Big Sky Tri |
| 41.05 | Jaromy Coomes | Billings West (AA) | 11 | Eastern AA Divisionals |
| 41.06 | Justus Peterson | Beaverhead Co./Dillon (A) | 11 | State A |
| 41.07 | Kaden Stradley | Custer Co./Miles City (A) | 12 | State A |
| 41.31 | Treyton Anderson | Beaverhead Co./Dillon (A) | 9 | Western Top 10 Meet |
| 41.33 | Landers Smith | Charlo (C) | 12 | State C |
| 41.35 | Aidan Brus | Helena (AA) | 12 | State AA |
| 41.49 | Braden Tomlin | Red Lodge (B) | 11 | State B |
| 41.51 | Logan Peila | Custer Co./Miles City (A) | 11 | John Polich Invitational |
| 41.56 | Zackary Pletcher | Columbia Falls (A) | 12 | State A |
| 41.57 | Seth Moon | Flathead (AA) | 12 | State AA |
| 41.65 | Tyler McDonald | Frenchtown (A) | 12 | State A |
| 41.68 | Matt Netley | Park/Livingston (A) | 12 | State A |
| 41.70 | Cameron Egan | Dawson Co./Glendive (A) | 10 | State A |
| 41.70 | Hunter Vogl | Belt (C) | 11 | Cascade Top 8 |
| 41.74 | Ryan DeVries | Billings West (AA) | 10 | State AA |
| 42.09 | Edison VanVleet | Noxon (C) | 12 | State C |
| 42.10 | Cody Welsh | Turner (C) | 12 | Northern C Divisional |
| 42.11 | Braedon Stosich | Sweet Grass Co./Big Timber (B) | 11 | State B |
| 42.20 | Tate Smith | Twin Bridges (C) | 10 | 12C Districts |
| 42.54 | Joey Visser | Jefferson/Boulder (B) | 9 | State B |