| Mark | Athlete | School | Year | Meet |
|---|
| 4:18.64 | Jonathan Eastwood | Belgrade (AA) | 12 | Midland Roundtable Top 10 |
| 4:19.52 | Isaac Petsch | Billings West (AA) | 12 | Midland Roundtable Top 10 |
| 4:21.17 | Jake Perrin | Flathead (AA) | 11 | State AA |
| 4:24.29 | Logan Morley | Bigfork (A) | 11 | State B |
| 4:24.62 | Sylas Schutt | Flathead (AA) | 12 | State AA |
| 4:25.77 | Iain Anderson | Helena (AA) | 10 | Western AA Divisional |
| 4:26.08 | Marshall Beatty | Missoula Sentinel (AA) | 10 | Western AA Divisional |
| 4:27.37 | Riley Collins | Bozeman (AA) | 10 | State AA |
| 4:27.39 | Dawson LaRance | Billings Senior (AA) | 10 | State AA |
| 4:27.58 | Sage Schoonen | Beaverhead Co./Dillon (A) | 12 | Southwestern A Divisional |
| 4:28.73 | Aidan Reed | Helena (AA) | 11 | Skor-DeKam Invitational |
| 4:29.14 | Danny Provo | Missoula Hellgate (AA) | 11 | Western AA Divisional |
| 4:30.27 | Paul Bielawski | Shelby (B) | 12 | State B |
| 4:31.06 | Chase Equall | Bozeman (AA) | 10 | State AA |
| 4:31.07 | Cameron Meikle | Hamilton (A) | 11 | Southwestern A Divisional |
| 4:31.22 | Teagan Olson | Great Falls (AA) | 9 | Great Falls Crosstown Meet |
| 4:31.27 | Ty Mogan | Laurel (A) | 12 | State A |
| 4:31.29 | Caelan Brady | Great Falls CMR (AA) | 12 | State AA |
| 4:32.26 | Ronald Venema | Corvallis (A) | 11 | Southwestern A Divisional |
| 4:32.57 | Dontae Baker | Helena Capital (AA) | 12 | Skor-DeKam Invitational |
| 4:32.61 | Emmette Dusty Bull | Browning (A) | 12 | State A |
| 4:33.13 | Tristen Guillot | Twin Bridges (C) | 12 | State C |
| 4:33.37 | Austin Stradley | Custer Co./Miles City (A) | 12 | Eastern A Divisional |
| 4:33.48 | AJ Eckman | Jefferson/Boulder (B) | 11 | State B |
| 4:33.55 | Ashton Jones | Dawson Co./Glendive (A) | 11 | Sidney Invitational |
| 4:33.80 | Brennan Worthington | Billings West (AA) | 12 | Billings West Triangular 5/2 |
| 4:34.59 | Brock Sandry | Glacier (AA) | 12 | Western AA Divisional |
| 4:34.66 | Preston Novak | Missoula Hellgate (AA) | 11 | Greg Rice Missoula City Meet |
| 4:34.86 | Bradey Wilson | Noxon (C) | 11 | State C |
| 4:35.19 | Jacob Iverson | Winnett-Grass Range (C) | 12 | State C |
| 4:35.23 | Tyus Mendoza | Colstrip (B) | 12 | Midland Roundtable Top 10 |
| 4:35.49 | Caleb Allen | Bozeman (AA) | 11 | State AA |
| 4:35.66 | Peder Rickbeil | Billings Senior (AA) | 10 | Billings West Triangular 5/2 |
| 4:35.78 | Kole Tison | Hamilton (A) | 12 | Southwestern A Divisional |
| 4:36.30 | Nathan Lapinski | Superior (C) | 10 | Western C Divisional |
| 4:36.81 | Daniel Buchignani | Manhattan Christian (C) | 12 | State C |
| 4:36.90 | Jaden Anderson | Flathead (AA) | 10 | Western AA Divisional |
| 4:37.38 | Andrew Jessop | Corvallis (A) | 10 | Southwestern A Divisional |
| 4:37.49 | Jacob Calles | Flathead (AA) | 11 | Western AA Divisional |
| 4:37.98 | Jacob Rogers | Hamilton (A) | 12 | Southwestern A Divisional |
| 4:38.17 | Jack Puckett | Missoula Hellgate (AA) | 11 | Greg Rice Missoula City Meet |
| 4:38.18 | Brendan Tobalske | Missoula Hellgate (AA) | 12 | Western AA Divisional |
| 4:38.40 | Russell Kujala | Plains (B) | 12 | State B |
| 4:38.54 | Jalen Two Leggins | Hardin (A) | 11 | State A |
| 4:38.60 | Isaac Schmidt | Missoula Hellgate (AA) | 9 | Greg Rice Missoula City Meet |
| 4:39.29 | Collin Buck | Great Falls CMR (AA) | 11 | CMR-Helena Dual |
| 4:40.14 | James Linabary | Bozeman (AA) | 12 | Billings West Triangular 5/2 |
| 4:40.24 | Wally Three Irons | Saint Labre (B) | 11 | State B |
| 4:40.30 | Hunter Flynn | Whitehall (B) | 10 | State B |
| 4:40.53 | Colton Gorian | Glacier (AA) | 11 | Western AA Divisional |
| 4:40.61 | Bridger Longtine | Helena Capital (AA) | 10 | Western AA Divisional |
| 4:40.94 | Evan Duggan | Darby (B) | 10 | Western C Divisional |
| 4:41.66 | Layne Ryerson | Helena (AA) | 12 | Western Top 10 Meet |
| 4:41.99 | Kody Torgerson | Great Falls (AA) | 10 | Great Falls-Glacier Dual |
| 4:42.14 | Carson Jessop | Corvallis (A) | 10 | Bob Reed-RCIA Invitational |
| 4:42.19 | Sage Schoonen | Beaverhead Co./Dillon (A) | 12 | Western Top 10 Meet |
| 4:42.34 | Joel Haas | Corvallis (A) | 10 | Bob Reed-RCIA Invitational |
| 4:42.53 | Peyton Jones | White Sulphur Springs (C) | 12 | Western C Divisional |
| 4:42.90 | Carter Gall | Billings Senior (AA) | 11 | Billings West Triangular 5/2 |
| 4:43.00 | Tanner Lehr | Hamilton (A) | 12 | Southwestern A Divisional |
| 4:43.32 | Ryan McNamara | Helena (AA) | 11 | Skor-DeKam Invitational |
| 4:43.33 | Garrett Ruud | Belgrade (AA) | 10 | State A |
| 4:43.92 | Frank Dean | Frenchtown (A) | 10 | Northwestern A Divisional |