| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Xavier Wehi | Christchurch Boys High School | 24.26q |
| 2 | Alizjah Campbell | Lincoln High School | 24.53q |
| 3 | Max Bradley | St Andrew's College | 24.72q |
| 4 | Ryan Kreft | Kings High School | 24.97q |
| 5 | Nicholas James-Pirie | Logan Park High School | 25.53 |
| 6 | Ben Mercer | Nelson College | 26.09 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Aryan Rai | Burnside High School | 24.63q |
| 2 | Hayden Vickery | St Andrew's College | 24.70q |
| 3 | Ngarimu Paraki | Southland Boys High School | 25.45q |
| 4 | Matt Pearce | Ashburton College | 25.45q |
| 5 | Riley Foster | Greymouth High School | 26.78 |
| -- | Will Chunn | Christchurch Boys High School | DQ |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Xavier Wehi | Christchurch Boys High School | 24.08 |
| 2 | Alizjah Campbell | Lincoln High School | 24.19 |
| 3 | Aryan Rai | Burnside High School | 24.49 |
| 4 | Max Bradley | St Andrew's College | 24.65 |
| 5 | Ryan Kreft | Kings High School | 24.76 |
| 6 | Hayden Vickery | St Andrew's College | 24.82 |
| 7 | Ngarimu Paraki | Southland Boys High School | 25.24 |
| 8 | Matt Pearce | Ashburton College | 25.70 |