| Mark | Athlete | School | Year | Meet |
|---|
| 21.68 | Jaden Foster | Missoula Sentinel (AA) | 11 | State AA |
| 21.72 | Chance Sheldon-Allen | Flathead (AA) | 11 | State AA |
| 21.90 | Cooper Craig | Bozeman (AA) | 11 | State AA |
| 21.94 | Connor Ryan | Billings West (AA) | 11 | Kelly Walsh Invitational (WY) |
| 22.20 | Dyllyn Stabler | Glacier (AA) | 12 | State AA |
| 22.35 | Eyezayah Boroughs | Billings West (AA) | 12 | Kelly Walsh Invitational (WY) |
| 22.39 | Neil Daily | Missoula Sentinel (AA) | 10 | State AA |
| 22.54 | Malikye Simpson | Billings Senior (AA) | 9 | State AA |
| 22.56 | Bret Morris | Helena Capital (AA) | 10 | State AA |
| 22.61 | Tommy Mellott | Butte (AA) | 11 | Swede Dahlberg Invitational |
| 22.68 | Tyler Rued | Bozeman (AA) | 12 | Eastern AA Divisionals |
| 22.69 | Ben Maehl | Missoula Big Sky (AA) | 11 | Capital/Great Falls/Big Sky Tri |
| 22.73 | Trevin Gradney | Billings West (AA) | 12 | Kelly Walsh Invitational (WY) |
| 22.78 | Milo Carpenter | Billings West (AA) | 12 | Kelly Walsh Invitational (WY) |
| 22.80 | Joe Olson | Bozeman (AA) | 12 | Skor DeKam |
| 22.88 | Rafe Premo | Great Falls CMR (AA) | 9 | Great Falls City Meet |
| 23.01 | Noel Reynolds Jr. | Belgrade (AA) | 11 | CMR Quadrangular |
| 23.13 | Payton Ater | Missoula Sentinel (AA) | 10 | Glacier-Sentinel Dual |
| 23.18 | Taco Dowler | Billings West (AA) | 9 | Kelly Walsh Invitational (WY) |
| 23.19 | Evan Major | Belgrade (AA) | 9 | Belgrade Senior Night |
| 23.20 | Josh Macy | Billings Skyview (AA) | 11 | Kelly Walsh Invitational (WY) |