| Mark | Athlete | School | Year | Meet |
|---|
| 14.03 | Corbin Weltzien | Missoula Hellgate (AA) | 12 | Helena/Big Sky/Hellgate Tri |
| 14.04 | Oliver Mow | Helena Capital (AA) | 10 | Helena Crosstown Meet |
| 14.50 | Ethan Anderson | Glacier (AA) | 12 | Western AA Divisional |
| 14.53 | Kellan Krueger | Missoula Big Sky (AA) | 11 | Missoula "Greg Rice" City Meet |
| 14.63 | Cormack Batt | Missoula Big Sky (AA) | 11 | Missoula "Greg Rice" City Meet |
| 14.74 | Cooper Pelc | Glacier (AA) | 10 | Western AA Divisional |
| 14.78 | Merek Mihelish | Helena Capital (AA) | 12 | Helena Crosstown Meet |
| 14.92 | Trae Headlee | Billings Skyview (AA) | 12 | Billings City Meet |
| 14.97 | Sam Henderson | Butte (AA) | 12 | Western AA Divisional |
| 15.02 | Caleb Litzinger | Great Falls (AA) | 12 | Eastern AA Divisional |
| 15.20 | Jameson Canney | Helena Capital (AA) | 11 | Helena Crosstown Meet |
| 15.40 | Bridger May | Bozeman (AA) | 12 | Eastern AA Divisional |
| 15.40 | Gavin Mow | Helena Capital (AA) | 12 | Helena Small Schools Invite |
| 15.45 | Case Procacci | Missoula Hellgate (AA) | 10 | Missoula "Greg Rice" City Meet |
| 15.54 | Jaden Bartell | Helena (AA) | 10 | Helena Crosstown Meet |
| 15.56 | Mark Ahner | Glacier (AA) | 12 | Harry 'Swede' Dahlberg Invitational |
| 15.61 | Lane Chivers | Flathead (AA) | 12 | Russ Plicher Western Top 10 |
| 15.66 | Jacob Galle | Butte (AA) | 11 | Last Chance Qualifier |
| 15.75 | Carter Dahlke | Gallatin (Bozeman) (AA) | 11 | Eastern AA Divisional |
| 15.97 | Gavin Starcevich | Helena Capital (AA) | 10 | Helena Crosstown Meet |
| 16.07 | Seth Kiser | Helena (AA) | 10 | Helena Crosstown Meet |
| 16.10 | Sirreal Rice | Flathead (AA) | 11 | Glacier/Flathead Dual |