| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Jay Finikin | Roncalli College | 24.00q |
| 2 | James McFarlane | Timaru Boys' High School | 24.70q |
| 3 | Hayden Campfens | Waitaki Boys' High School | 24.80q |
| 4 | Tom Wardell | Geraldine High School | 24.90q |
| 5 | Oliver Luxton | Mt Hutt College | 25.60 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | George Vae'au | Waitaki Boys' High School | 24.60q |
| 2 | Tony Wood | Waimate High School | 25.00q |
| 3 | Ricki Neame | Timaru Boys' High School | 25.20q |
| 4 | Brandon Ruffell | Roncalli College | 25.40q |
| 5 | Logan Pinnell | Mountainview High School | 25.40 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Jay Finikin | Roncalli College | 23.90 |
| 2 | Hayden Campfens | Waitaki Boys' High School | 24.60 |
| 3 | James McFarlane | Timaru Boys' High School | 25.30 |
| 3 | Ricki Neame | Timaru Boys' High School | 25.30 |
| 5 | Tom Wardell | Geraldine High School | 25.70 |
| -- | Brandon Ruffell | Roncalli College | DNS |
| -- | George Vae'au | Waitaki Boys' High School | NT |
| -- | Tony Wood | Waimate High School | DNS |