| Mark | Athlete | School | Year | Meet |
|---|
| 4:12.06 | Jake Perrin | Flathead (AA) | 12 | State AA |
| 4:13.59 | Chase Equall | Bozeman (AA) | 11 | State AA |
| 4:15.99 | Peter Kirgis | Missoula Hellgate (AA) | 12 | State AA |
| 4:17.81 | Logan Morley | Bigfork (A) | 12 | Archie Roe |
| 4:20.12 | Aidan Reed | Helena (AA) | 12 | State AA |
| 4:20.78 | Dawson LaRance | Billings Senior (AA) | 11 | State AA |
| 4:21.42 | Riley Collins | Bozeman (AA) | 11 | State AA |
| 4:25.42 | Iain Anderson | Helena (AA) | 11 | State AA |
| 4:25.84 | Ben Perrin | Flathead (AA) | 9 | State AA |
| 4:26.34 | Sage Wanner | Columbia Falls (A) | 11 | Western A Divisionals |
| 4:26.84 | Marshall Beatty | Missoula Sentinel (AA) | 11 | Western AA Divisional |
| 4:27.15 | Cameron Meikle | Hamilton (A) | 12 | State A |
| 4:27.40 | Josh Jessop | Corvallis (A) | 12 | Western A Divisionals |
| 4:28.34 | Peder Rickbeil | Billings Senior (AA) | 11 | State AA |
| 4:29.81 | Cooper West | Great Falls CMR (AA) | 10 | State AA |
| 4:29.84 | Jacob Calles | Flathead (AA) | 12 | Western AA Divisional |
| 4:30.13 | Caleb Allen | Bozeman (AA) | 12 | State AA |
| 4:30.26 | Bryant Edgerton | Broadwater/Townsend (B) | 11 | KLH Memorial |
| 4:30.74 | Jaden Anderson | Flathead (AA) | 11 | Helena Skor/DeKam Invitational |
| 4:31.18 | Teagan Olson | Great Falls (AA) | 10 | Great Falls City Meet |
| 4:31.94 | Collin Buck | Great Falls CMR (AA) | 12 | State AA |
| 4:32.31 | Ashton Jones | Dawson Co./Glendive (A) | 12 | State A |
| 4:33.02 | AJ Eckmann | Jefferson/Boulder (B) | 12 | KLH Memorial |
| 4:33.41 | Kyle McLaughlin | Belgrade (AA) | 12 | State A |
| 4:33.68 | Levi Taylor | Laurel (A) | 9 | John Polich Cowgirl/Cowboy Invitational Track Meet |
| 4:34.38 | Ronald Venema | Corvallis (A) | 12 | Western A Divisionals |
| 4:34.44 | Isaac Schmidt | Missoula Hellgate (AA) | 10 | Archie Roe |
| 4:34.45 | Evan Duggan | Darby (B) | 11 | State C |
| 4:34.57 | Joel Haas | Corvallis (A) | 11 | Western A Divisionals |
| 4:34.84 | Bradey Wilson | Noxon (C) | 12 | State C |
| 4:35.12 | Brock Rugg | Frenchtown (A) | 10 | Western A Divisionals |
| 4:35.13 | Carson Jessop | Corvallis (A) | 11 | ABC Invitational |
| 4:35.33 | Morris Wecker | Missoula Hellgate (AA) | 11 | Greg Rice |
| 4:35.41 | Preston Novak | Missoula Hellgate (AA) | 12 | Western AA Divisional |
| 4:35.41 | Simon Petsch | Billings West (AA) | 11 | Billings Invite |
| 4:35.73 | Danny Provo | Missoula Hellgate (AA) | 12 | Greg Rice |
| 4:36.97 | Ty Parsons | Fergus/Lewistown (A) | 12 | Eastern A Divisional |
| 4:37.01 | Frank Dean | Frenchtown (A) | 11 | Western A Divisionals |
| 4:37.14 | Tevyn Stetson | Glacier (AA) | 11 | Kalispell Invite |
| 4:37.96 | Andrew Jessop | Corvallis (A) | 11 | Western A Divisionals |
| 4:38.19 | Colter Barney | Manhattan (B) | 11 | MidLand Round Table Top Ten |
| 4:38.42 | Elijah Boyd | Glacier (AA) | 10 | Western AA Divisional |
| 4:38.80 | Hunter Flynn | Whitehall (B) | 11 | State B |
| 4:39.11 | Tim Wright | Richey-Lambert (C) | 12 | North/East Top 10 |
| 4:39.69 | Leonard McComas | Manhattan (B) | 10 | MHSA Class B Championships |