| Mark | Athlete | School | Year | Meet |
|---|
| 4:04.89 | Nathan Neil | Bozeman (AA) | 12 | State AA Championship |
| 4:14.35 | Quinn Newman | Missoula Sentinel (AA) | 12 | State AA Championship |
| 4:17.71 | Ben Bird | Hardin (A) | 9 | State A Championship |
| 4:17.80 | Grey Piseno | Billings Central (A) | 10 | State A Championship |
| 4:18.00 | Ryan Harrington | Great Falls (AA) | 12 | State AA Championship |
| 4:18.63 | Tyler Inabnit | Missoula Sentinel (AA) | 11 | State AA Championship |
| 4:18.81 | Owen Thiel | Glacier (AA) | 10 | State AA Championship |
| 4:20.01 | Henry Sund | Helena (AA) | 11 | State AA Championship |
| 4:20.50 | Jeremy Posdon | Bozeman (AA) | 12 | State AA Championship |
| 4:21.01 | Caleb Tomac | Havre (A) | 12 | State A Championship |
| 4:21.06 | Peyton Summers | Wolf Point (B) | 12 | State B Championship |
| 4:21.93 | Luke Mest | Jefferson/Boulder (B) | 12 | State B Championship |
| 4:22.04 | Finn Schretenthaler | Park/Livingston (A) | 10 | State A Championship |
| 4:23.00 | Ashtyn Rask | Great Falls (AA) | 12 | State AA Championship |
| 4:23.35 | Elliot Stimpson | Helena (AA) | 11 | State AA Championship |
| 4:24.25 | Jack Jensen | Bigfork (A) | 12 | State A Championship |
| 4:25.21 | Dominic Hurlbert | Jefferson/Boulder (B) | 11 | Corvallis Quad |
| 4:25.26 | Jaden Shila | Dawson Co./Glendive (A) | 11 | State A Championship |
| 4:25.46 | Taylor Neil | Bozeman (AA) | 9 | State AA Championship |
| 4:25.60 | Aaron French | Jefferson/Boulder (B) | 12 | Southern B Divisional |
| 4:25.74 | Oren Arthun | Manhattan Christian (C) | 12 | Manhattan Christian Invitational |
| 4:26.74 | Miles Halvorsen | Bozeman (AA) | 10 | State AA Championship |
| 4:27.11 | Simon Douglas | Whitefish (A) | 11 | Archie Roe Invitational |
| 4:27.28 | Mason Moler | Billings West (AA) | 12 | State AA Championship |
| 4:27.65 | Dylan Hill | Helena (AA) | 10 | Russ Plicher Western Top 10 |
| 4:27.80 | Daniel Johnson | Bozeman (AA) | 12 | State AA Championship |
| 4:27.89 | Wilson Derry | Missoula Hellgate (AA) | 12 | State AA Championship |
| 4:27.96 | Colter Anderson | Sweet Grass Co./Big Timber (B) | 10 | State B Championship |
| 4:28.03 | Jack Davidson | Corvallis (A) | 11 | Corvallis Quad |
| 4:28.34 | John Spinti | Great Falls (AA) | 12 | Flathead-Great Falls Dual |
| 4:28.38 | Taylor Doleac | Hamilton (A) | 10 | Western A Divisional |
| 4:28.97 | Wilson Schmidt | Belgrade (AA) | 10 | Last Chance Invite |
| 4:28.98 | Kiedis MacFarlane | Gallatin (Bozeman) (AA) | 11 | State AA Championship |
| 4:29.06 | Milo Kauffman | Helena (AA) | 9 | Skor Dekam Invitational |
| 4:29.30 | Kye Mcabee | Billings West (AA) | 10 | State AA Championship |
| 4:29.51 | Kasen Kastner | Flathead (AA) | 11 | Western AA Divisional |
| 4:30.03 | Emerson Hamma | Great Falls CMR (AA) | 10 | Skor Dekam Invitational |
| 4:30.19 | Shaphan Hubner | Manhattan Christian (C) | 11 | Western C Divisional |
| 4:30.62 | James Stensland-Plymale | Columbus (B) | 12 | State B Championship |
| 4:30.70 | Aidan Brown | Belgrade (AA) | 12 | State AA Championship |
| 4:30.88 | Isaiah Cowan | Missoula Big Sky (AA) | 11 | Western AA Divisional |
| 4:31.34 | Thomas Oylear | Powder River Co./Broadus (C) | 12 | Al Walker Memorial Meet |
| 4:31.38 | Paul Dannenberg | Billings West (AA) | 11 | State AA Championship |
| 4:31.59 | Scott Parke | Drummond (C) | 12 | Western C Divisional |
| 4:31.66 | Hayden Smith | Charlo (C) | 12 | Western C Divisional |
| 4:31.88 | David DiGiallonardo | Polson (A) | 10 | Western A Divisional |
| 4:32.08 | Preston Iron Heart | Browning (A) | 12 | Western A Divisional |
| 4:32.13 | Kieran Anderson | Bozeman (AA) | 12 | Last Chance Invite |
| 4:32.54 | Axel Butler | Gallatin (Bozeman) (AA) | 10 | Eastern AA Divisional |
| 4:32.88 | Bridger Warner | Gallatin (Bozeman) (AA) | 9 | Eastern AA Divisional |
| 4:33.16 | Evan Bennett | Hamilton (A) | 11 | Columbia Falls Iceberg Invitational |
| 4:33.31 | Clayton Jassen | Belt (C) | 12 | Northern C Divisional |
| 4:33.43 | Jake Matthews | Helena (AA) | 11 | Helena Triangular |
| 4:33.72 | Ridley Key | Missoula Hellgate (AA) | 11 | Western AA Divisional |
| 4:33.98 | Auston Schellig | Joliet (B) | 10 | State B Championship |
| 4:34.14 | Anthony Ackerman | Dawson Co./Glendive (A) | 12 | Watford City Invite (ND) |
| 4:34.18 | Elias Vesbach | Columbus (B) | 12 | Southern B Divisional |
| 4:34.43 | Lucas Keith | Billings West (AA) | 10 | Billings West Triangular 4/5 |
| 4:34.80 | Brodie Tirrell | Belgrade (AA) | 12 | Eastern AA Divisional |
| 4:34.81 | Chandler Christensen | Billings Skyview (AA) | 11 | Eastern AA Divisional |
| 4:34.90 | River Racine | Browning (A) | 10 | Western A Divisional |
| 4:35.30 | Odin Berryman | Missoula Hellgate (AA) | 10 | Western AA Divisional |
| 4:35.87 | Jacob Piapot | Ronan (A) | 11 | Western A Divisional |
| 4:36.12 | Mekhi Ladson | Lockwood (A) | 10 | State A Championship |
| 4:36.42 | Judah McConville | Gallatin (Bozeman) (AA) | 12 | Eastern AA Divisional |
| 4:36.55 | Bryson Poulsen | Hamilton (A) | 11 | Western A Divisional |
| 4:37.21 | Oscar Valliant | Missoula Hellgate (AA) | 11 | Greg Rice City Meet |
| 4:37.47 | Taggart Jessop | Corvallis (A) | 10 | Western A Divisional |
| 4:37.59 | Cass Violett | Three Forks (B) | 11 | Southern B Divisional |
| 4:37.81 | Sayer Henderson | Missoula Hellgate (AA) | 12 | Greg Rice City Meet |
| 4:37.83 | Jack Syverson | Glacier (AA) | 11 | Western AA Divisionals |
| 4:38.03 | Christian Landers | Bozeman (AA) | 10 | Bozeman Crosstown |
| 4:38.07 | Charles Clater | Missoula Big Sky (AA) | 11 | Western AA Divisional |
| 4:38.85 | Jonas Kreitner | Glacier (AA) | 12 | Kalispell Time Trials |
| 4:38.86 | Dawson Parke | Drummond (C) | 9 | State C Championship |
| 4:38.94 | Jackson Bontadelli | Polson (A) | 10 | Western A Divisional |
| 4:39.56 | Zach Downing | Park City (B) | 12 | Southern B Divisional |
| 4:39.58 | Jeffery DeRoche | Browning (A) | 12 | Western A Divisional |
| 4:39.59 | Kyler Holinde | Glasgow (B) | 11 | Northern B Divisional |
| 4:39.65 | Mica Kantor | Missoula Sentinel (AA) | 9 | Western AA Divisional |
| 4:39.88 | Gabe Ackerly | Glacier (AA) | 9 | Western AA Divisional |