| Mark | Athlete | School | Year | Meet |
|---|
| 21.80 | Ben Bliven | Flathead (AA) | 12 | Western AA Divisional |
| 21.82 | Luke Ruch | Helena (AA) | 12 | Helena Crosstown Meet |
| 21.90 | William Hollensteiner | Flathead (AA) | 11 | Western AA Divisional |
| 21.92 | Cooper Nelson | Helena Capital (AA) | 11 | Helena Crosstown Meet |
| 22.00 | Trizten Avila | Superior (B) | 12 | State B/C Championship |
| 22.11 | Louis Kamps | Gallatin (Bozeman) (AA) | 11 | Eastern AA Divisional |
| 22.20 | Buck Prather | Columbus (B) | 9 | State B/C Championship |
| 22.25 | Caleb Conver | Billings West (AA) | 12 | Eastern AA Divisional |
| 22.29 | Henry Kukowski | Plentywood (C) | 11 | State B/C Championship |
| 22.32 | Drew Almquist | Helena Capital (AA) | 10 | MCPS Invitational |
| 22.33 | Steele Harris | Great Falls (AA) | 10 | Great Falls/Bozeman Dual |
| 22.36 | Trey Peterson | Helena (AA) | 11 | Helena Crosstown Meet |
| 22.39 | Logan Williams | Florence-Carlton (B) | 11 | State B/C Championship |
| 22.40 | Cooper Pelc | Glacier (AA) | 10 | Western AA Divisional |
| 22.42 | Solomon Morgan | Corvallis (A) | 12 | Sapphire Twilight Meet |
| 22.43 | Brayden McCoy | Valley Christian (C) | 12 | State B/C Championship |
| 22.45 | Cooper Tschan | Missoula Sentinel (AA) | 10 | Western AA Divisional |
| 22.50 | Blake Williams | Missoula Big Sky (AA) | 11 | Western AA Divisional |
| 22.50 | Ayden Spencer | Corvallis (A) | 10 | Nelson-Thomas ABC Meet |
| 22.51 | Lucas Kadillak | Bozeman (AA) | 12 | Great Falls/Bozeman Dual |
| 22.52 | Kougar Kappel | Red Lodge (B) | 11 | Al Walker Memorial Meet |
| 22.54 | Brady Williams | Missoula Big Sky (AA) | 11 | Western AA Divisional |
| 22.56 | William Snell | Billings Central (A) | 11 | Eastern A Divisional |
| 22.57 | Christian Alexander | Billings West (AA) | 11 | Billings City Meet |
| 22.57 | Jack Phelps | Columbia Falls (A) | 12 | Columbia Falls Iceberg Invitational |
| 22.57 | Khye Gamas | Glasgow (B) | 11 | State B/C Championship |
| 22.58 | Isaiah Gather | Three Forks (B) | 11 | 5B/12C District Meet |
| 22.62 | Wesley Ehret | Belgrade (AA) | 11 | Belgrade Open |
| 22.63 | Boaz Mckinney | Billings Skyview (AA) | 12 | SCAD#1 |
| 22.64 | Travis Ryland-Davis | Helena (AA) | 12 | Western AA Divisional |
| 22.65 | Calvin Paczkowski | Billings West (AA) | 11 | Midland Roundtable Top 10 |
| 22.68 | Westdon Kelley | Billings West (AA) | 9 | Eastern AA Divisional |
| 22.73 | Beck Whicker | Custer Co./Miles City (A) | 12 | Eastern A Divisional |
| 22.74 | Pacer Lybbert | Helena (AA) | 11 | Helena Crosstown Meet |
| 22.75 | McCoy Townsend | Darby (B) | 11 | State B/C Championship |
| 22.78 | Kellen Gibson | Missoula Sentinel (AA) | 11 | MCPS Invitational |
| 22.78 | Brody Hardy | Frenchtown (A) | 12 | Columbia Falls Iceberg Invitational |
| 22.79 | Luke Kelley | Centerville (C) | 12 | State B/C Championship |
| 22.82 | Dushawn Washington | Billings West (AA) | 12 | Billings City Meet |
| 22.84 | Ethan DeLeon | Billings Senior (AA) | 11 | Billings City Meet |
| 22.86 | Isaac Bates | Florence-Carlton (B) | 12 | Seeley-Swan Invitational |
| 22.87 | Dawson Hammond | Malta (B) | 11 | Mustang Invite |
| 22.87 | Cole Zeigler | Frenchtown (A) | 12 | Columbia Falls Iceberg Invitational |
| 22.88 | Cameron LeProwse | Missoula Sentinel (AA) | 11 | Missoula "Greg Rice" City Meet |
| 22.90 | Colby Minton | Whitefish (A) | 10 | Whitefish ARM Invitational |
| 22.91 | Treven Thronson | Billings Skyview (AA) | 10 | Eastern AA Divisional |
| 22.96 | Bladen Madel | Great Falls (AA) | 11 | Eastern AA Divisional |
| 22.98 | Brandon Williams | Joliet (B) | 11 | 4B District Meet |
| 23.00 | Reese Moon | Culbertson (C) | 12 | 2C District Meet |
| 23.01 | Luke Oxarart | Jefferson/Boulder (B) | 12 | Seeley-Swan Invitational |
| 23.02 | Brant Ligameri | Cascade (C) | 11 | Northern C Divisional |
| 23.03 | Marshall Friese | Manhattan (B) | 10 | 5B/12C District Meet |
| 23.03 | Ethan Anderson | Glacier (AA) | 12 | CMR/Glacier Dual |
| 23.03 | Rocky Mogstad | Missoula Hellgate (AA) | 12 | Missoula "Greg Rice" City Meet |
| 23.04 | Adam Guajardo | Missoula Big Sky (AA) | 11 | Helena High/Big Sky/Hellgate Tri |
| 23.05 | Lane Humphrey | Billings West (AA) | 10 | Billings City Meet |
| 23.06 | Carson Nissen | Chinook (B) | 12 | Norm Girard Top 10 Track Meet |
| 23.07 | Dylan Miller | Lockwood (A) | 11 | Eastern A Divisional |
| 23.08 | Randy RunningRabbit | Browning (A) | 12 | Browning Time Trials |
| 23.09 | Layne Remme | Billings Skyview (AA) | 10 | Billings City Meet |
| 23.09 | Riley Zetooney | Whitefish (A) | 12 | Bigfork/Columbia Falls/Whitefish Tri |
| 23.12 | Mikael Richard | Jefferson/Boulder (B) | 11 | 5B/12C District Meet |
| 23.12 | Nolan Friesen | Missoula Sentinel (AA) | 10 | Western AA Divisional |
| 23.12 | Cameron Fyffe | Missoula Sentinel (AA) | 11 | Missoula "Greg Rice" City Meet |
| 23.13 | Preston Welch | Shepherd (B) | 10 | Al Walker Memorial Meet |
| 23.14 | Boone Davis | Helena Capital (AA) | 10 | Helena Crosstown Meet |
| 23.16 | Sam Sampson | Butte (AA) | 12 | Swede Dahlberg Invitational |
| 23.16 | Jacob Swanz | Denton-Geyser-Stanford (C) | 11 | Northern C Divisional |
| 23.17 | Auston Rowe | Helena (AA) | 11 | Helena Crosstown Meet |
| 23.19 | Christian Triemstra | Manhattan Christian (C) | 12 | Western B/C Divisional |
| 23.20 | Cole Kramer | Ennis (B) | 12 | 5B/12C District Meet |
| 23.20 | Josh Lambertsen | Lincoln Co./Eureka (B) | 11 | Whitefish ARM Invitational |