| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Nick Kalivati | St Patrick's College (Silverst | 38.91q |
| 2 | Byron Smith | St Pauls Collegiate (Hamilton) | 39.61q |
| 3 | Thomas Satherley | Wanganui High School | 40.45q |
| 4 | Jeffrey Simpson | St Kentigern College | 41.31q |
| 5 | Zac Lilburn | Wanganui Collegiate | 42.26 |
| 6 | Tawanda Chaza | Hornby High School | 42.33 |
| 7 | Thomas Parsons | Otago Boys High School | 43.37 |
| 8 | Robert Love | Ellesmere College | 45.31 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Cameron Hayton | Palmerston North Boys High Sch | 39.07q |
| 2 | Robert Musgrave | Riccarton High School | 39.24q |
| 3 | Bruce Long | Wanganui Collegiate | 39.24q |
| 4 | Geoff Brown | St Patrick's College (Silverst | 41.52q |
| 5 | Simon Badger | Auckland Grammar School | 43.08 |
| 6 | Hamish Day | Hamilton Boys High School | 44.92 |
| 7 | Liam O'Connell | Ellesmere College | 45.64 |
| 8 | Dion Potaka | Wanganui High School | 46.17 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Cameron Hayton | Palmerston North Boys High Sch | 38.00 |
| 2 | Nick Kalivati | St Patrick's College (Silverst | 38.67 |
| 3 | Geoff Brown | St Patrick's College (Silverst | 39.24 |
| 4 | Bruce Long | Wanganui Collegiate | 39.37 |
| 5 | Thomas Satherley | Wanganui High School | 39.39 |
| 6 | Robert Musgrave | Riccarton High School | 40.10 |
| 7 | Byron Smith | St Pauls Collegiate (Hamilton) | 41.14 |
| 8 | Jeffrey Simpson | St Kentigern College | 43.40 |