| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Adam Pauling | Nayland College | 23.90q |
| 2 | Sam Watson | Otago Boys High School | 24.24q |
| 3 | Nick Fraser-Young | Hillmorton High School | 24.32q |
| 4 | Cameron McClea | Waitaki Boys' High School | 24.62 |
| 5 | Reiko Russell | Kings High School | 24.69 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Cameron Hay | Christchurch Boys High School | 23.74q |
| 2 | Jack Roberts | Burnside High School | 23.88q |
| 3 | Mitchell Chandler | Nayland College | 24.15q |
| 4 | Zac Watt | Otago Boys High School | 24.23q |
| 5 | Isak Gunnarsson | St Kevin's College | 24.30q |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Cameron Hay | Christchurch Boys High School | 23.22 |
| 2 | Sam Watson | Otago Boys High School | 23.58 |
| 3 | Adam Pauling | Nayland College | 23.88 |
| 4 | Mitchell Chandler | Nayland College | 24.06 |
| 5 | Jack Roberts | Burnside High School | 24.20 |
| 6 | Nick Fraser-Young | Hillmorton High School | 24.30 |
| 7 | Zac Watt | Otago Boys High School | 24.59 |
| 8 | Isak Gunnarsson | St Kevin's College | 24.62 |