| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Hamish O'Connell | Christchurch Boys High School | 57.53q |
| 2 | Steven Maw | Ellesmere College | 57.79q |
| 3 | Tim Egerton | Tuatapere Community College | 58.94q |
| 4 | Leslie Taylor | Otago Boys High School | 59.34 |
| 5 | Damon Woolf | St Andrew's College | 1:02.21 |
| -- | Gregory Robertson | Southland Boys High School | SCR |
| -- | Ben Turner | St Kevin's College | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Joel Armstrong | Middleton Grange School | 55.16q |
| 2 | Sam Briggs | Ashburton College | 55.53q |
| 3 | Robert Brown | Kings High School | 55.64q |
| 4 | Ken Hellier | Waitaki Boys' High School | 57.20q |
| 5 | Craig Smith | Christchurch Boys High School | 57.20q |
| 6 | Dillon Anderson | Motueka High School | 57.81 |
| -- | Matt Waaka | Papanui High School | SCR |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Joel Armstrong | Middleton Grange School | 52.00 |
| 2 | Sam Briggs | Ashburton College | 54.20 |
| 3 | Robert Brown | Kings High School | 55.01 |
| 4 | Hamish O'Connell | Christchurch Boys High School | 55.98 |
| 5 | Steven Maw | Ellesmere College | 56.67 |
| 6 | Craig Smith | Christchurch Boys High School | 56.83 |
| 7 | Ken Hellier | Waitaki Boys' High School | 57.77 |
| 8 | Tim Egerton | Tuatapere Community College | 58.73 |