| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Samuel Wilson | Ashburton College | 54.87q |
| 2 | Tegan Goodman | Motueka High School | 55.64q |
| 3 | P Innes | Otago Boys High School | 58.04q |
| 4 | SAM EVANS | St Andrew's College | 1:00.17 |
| -- | Chris Elenor | Garin College | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Matt Brown | Nelson College | 54.03q |
| 2 | M Innes | Otago Boys High School | 55.45q |
| 3 | Jeremy Walmsley | St Kevin's College | 56.20q |
| 4 | Rodger Mockford | Timaru Boys' High School | 56.52q |
| 5 | Josh Rogers | Ashburton College | 57.00q |
| -- | PAPU HASSAN | Shirley Boys High School | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Samuel Wilson | Ashburton College | 52.55 |
| 2 | Matt Brown | Nelson College | 53.52 |
| 3 | Tegan Goodman | Motueka High School | 54.36 |
| 4 | M Innes | Otago Boys High School | 54.88 |
| 5 | Jeremy Walmsley | St Kevin's College | 54.97 |
| 6 | Rodger Mockford | Timaru Boys' High School | 57.02 |
| 7 | Josh Rogers | Ashburton College | 57.39 |
| -- | P Innes | Otago Boys High School | DNF |