| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Alex Jordan | Nayland College | 23.86q |
| 2 | Todd Johnston | Otago Boys High School | 24.89q |
| 3 | Sam Hinton | Otago Boys High School | 25.26q |
| 4 | Cole McKenzie | Mount Aspiring College | 25.28q |
| 5 | Scott Walker | Christchurch Boys High School | 25.35q |
| 6 | Oliver Luxton | Mt Hutt College | 26.13 |
| 7 | Martin Swart | Christchurch Boys High School | 28.10 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Tom Allen | Gore High School | 24.74q |
| 2 | Tomi Obafemi | Ashburton College | 24.87q |
| 3 | Chad Butson | Southland Boys High School | 24.88q |
| 4 | James Lowe | Nelson College | 26.39 |
| 5 | Andre Lockyer | Waimate High School | 26.95 |
| 6 | Lucas Trevathan | Shirley Boys High School | 27.47 |
| 7 | Rhett Moore | Papanui High School | 28.01 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Alex Jordan | Nayland College | 23.57 |
| 2 | Todd Johnston | Otago Boys High School | 24.02 |
| 3 | Tom Allen | Gore High School | 24.85 |
| 4 | Tomi Obafemi | Ashburton College | 24.94 |
| 5 | Sam Hinton | Otago Boys High School | 25.39 |
| 6 | Scott Walker | Christchurch Boys High School | 25.54 |
| 7 | Cole McKenzie | Mount Aspiring College | 25.84 |
| 8 | Chad Butson | Southland Boys High School | 27.34 |