| Mark | Athlete | School | Year | Meet |
|---|
| 52-03.5 | Austin Forson | Powell Co./Deer Lodge (B) | 12 | KLH Invitational |
| 49-08 | Curtis Harper | Roundup (B) | 12 | State B |
| 48-04 | Stetson Miller | Lincoln Co./Eureka (B) | 12 | CFHS Iceberg Invitational |
| 48-02.5 | Joey McElroy | Loyola Sacred Heart (B) | 12 | Western Top 10 Meet |
| 47-10 | Michael Durglo | Loyola Sacred Heart (B) | 12 | Bigfork Invitational |
| 47-05.5 | Nathan Baker | Sweet Grass Co./Big Timber (B) | 12 | Southern B Divisional |
| 47-02.75 | Trey Copeland | Huntley Project (B) | 12 | Snowflake Meet |
| 46-11 | Colter Szymoniak | Lincoln Co./Eureka (B) | 12 | Lincoln County Meet |
| 46-08.5 | Tanner Harrell | Shepherd (B) | 12 | Laurel Varsity Invite |