| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Sam Ballam | Southland Boys High Schoo | 54.35q |
| 2 | Mitchell Hopping | Waitaki Boys' High School | 56.30q |
| 3 | Henry Davey Wraight | Motueka High School | 56.34q |
| 4 | Thomas Parsons | Otago Boys High School | 56.40q |
| 5 | Shaun Musuka | Bayfield High School | 56.42q |
| 6 | Robert Smith | Christchurch Boys High Sc | 59.89 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Dane Petheram | Lincoln High School | 54.92q |
| 2 | Lewis Binnersley | Christ's College | 55.55q |
| 3 | Ryan Proffit | Ashburton College | 56.40q |
| 4 | Craig Browning | Central Southland Coll | 56.90 |
| 5 | Tyrone Todd | Waitaki Boys' High School | 59.67 |
| -- | Blair Timpany | Menzies College | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Dane Petheram | Lincoln High School | 51.59 |
| 2 | Sam Ballam | Southland Boys High Schoo | 52.63 |
| 3 | Lewis Binnersley | Christ's College | 54.24 |
| 4 | Henry Davey Wraight | Motueka High School | 54.49 |
| 5 | Shaun Musuka | Bayfield High School | 54.99 |
| 6 | Mitchell Hopping | Waitaki Boys' High School | 55.15 |
| 7 | Thomas Parsons | Otago Boys High School | 56.55 |
| 8 | Ryan Proffit | Ashburton College | 56.97 |