| Mark | Athlete | School | Year | Meet |
|---|
| 4:12.69 | Ignatius Fitzgerald | Missoula Hellgate (AA) | 12 | State AA |
| 4:16.26 | Tanner Klumph | Missoula Sentinel (AA) | 11 | State AA |
| 4:18.75 | Sam Ells | Glacier (AA) | 11 | State AA |
| 4:21.29 | William Mortenson | Missoula Sentinel (AA) | 12 | Glacier-Sentinel Dual |
| 4:25.16 | Keagen Crosby | Missoula Sentinel (AA) | 10 | State AA |
| 4:26.79 | Jackson Triepke | Missoula Hellgate (AA) | 11 | State AA |
| 4:26.97 | Colter Kirkland | Hamilton (A) | 11 | Nelson-Thomas ABC Meet |
| 4:27.65 | Carson Steckelberg | Gallatin (Bozeman) (AA) | 10 | State AA |
| 4:27.69 | Chase Green | Missoula Sentinel (AA) | 11 | State AA |
| 4:27.81 | Colter Purcell | Hamilton (A) | 11 | Nelson-Thomas ABC Meet |
| 4:28.82 | Samuel Smith | Richey-Lambert (C) | 12 | Sidney Invitational |
| 4:29.89 | Zander Ackerman | Wolf Point (B) | 12 | Sidney Invitational |
| 4:30.57 | Connor Neil | Bozeman (AA) | 11 | State AA |
| 4:30.68 | Jack Jensen | Bigfork (B) | 9 | Northern C Divisional |
| 4:30.70 | Xander Danenhauer | Bozeman (AA) | 12 | State AA |
| 4:31.35 | Weston Brown | Bozeman (AA) | 10 | State AA |
| 4:31.43 | Brinson Wyche | Corvallis (A) | 11 | State A |
| 4:31.60 | Nathan Neil | Bozeman (AA) | 9 | State AA |
| 4:31.68 | Finneas Colescott | Missoula Hellgate (AA) | 10 | State AA |
| 4:31.95 | Ryan Harrington | Great Falls (AA) | 9 | State AA |
| 4:32.04 | Jaxon Straus | Billings West (AA) | 10 | Billings West-Bozeman Dual |
| 4:32.27 | Lane Cole | Hamilton (A) | 11 | Western A Divisional |
| 4:32.29 | Henry Ballinger | Helena Capital (AA) | 10 | Western Top 10 |
| 4:32.78 | Miles Colescott | Missoula Hellgate (AA) | 12 | Hellgate-Butte Dual |
| 4:33.26 | Seth Petsch | Billings West (AA) | 11 | State AA |
| 4:33.40 | Justin Morgan | Thompson Falls (B) | 12 | Northern C Divisional |
| 4:33.60 | Caleb Hornung | Billings West (AA) | 12 | Billings West-Bozeman Dual |
| 4:33.81 | Andrew Rush | Saint Ignatius (B) | 10 | State B |
| 4:34.14 | Nathaniel Gale | Florence-Carlton (B) | 11 | State B |
| 4:34.38 | Colin Shaules | Missoula Sentinel (AA) | 11 | Glacier-Sentinel Dual |
| 4:35.27 | Oren Arthun | Manhattan Christian (C) | 9 | State C |
| 4:35.36 | Michael Irvine | Ronan (A) | 12 | State A |
| 4:35.74 | Corbin Johnson | Missoula Sentinel (AA) | 12 | Western AA Divisional |
| 4:35.96 | MacGwyer Palmer | Great Falls (AA) | 10 | Great Falls Crosstown Dual |
| 4:36.98 | Jeremy Bockus | Browning (A) | 11 | Western A Divisional |
| 4:37.13 | Stirling Marshall-Pryde | Bozeman (AA) | 12 | Billings West-Bozeman Dual |
| 4:37.58 | Tayjon Joe | Hardin (A) | 11 | State A |
| 4:37.84 | Devan Walhof Jr | Manhattan Christian (C) | | State C |
| 4:39.45 | Gabe Felton | Flathead (AA) | 11 | Western AA Divisional |
| 4:39.61 | Brant Heiner | Ronan (A) | 12 | Lake County Track Meet |
| 4:39.65 | Richard Role | Columbia Falls (A) | 12 | Western A Divisional |
| 4:40.44 | Asa Jassen | Belt (C) | 11 | State C |
| 4:40.82 | Quaiden Whiteman | Hardin (A) | 12 | Eastern A Divisional |
| 4:41.12 | Kevin Graves | Huntley Project (B) | 11 | State B |
| 4:42.25 | Ryan Fenley | Harlowton-Ryegate (C) | 12 | State C |
| 4:42.44 | Mason Sloan | Polson (A) | | State A |