| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Harry Williamson | Christchurch Boys High School | 40.88q |
| 2 | Paul Steyn | Bethlehem College | 41.40q |
| 3 | Noah Retford | Botany Downs Secondary College | 41.94q |
| 4 | Charles Howlett | Auckland Grammar School | 42.29q |
| 5 | Sean Newlands | Roncalli College | 42.82q |
| 6 | Oliver-Tane Knowles | Cambridge High School | 44.62 |
| 7 | Dylan Jackson | Christ's College | 47.70 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Benjamin Langley | One Tree Hill College | 40.33q |
| 2 | Benjie Fairclough | Mt Albert Grammar | 42.48q |
| 3 | Joshua Ingham | St Patrick's College (Kilbirni | 43.59q |
| 4 | Henry Sevier | Christchurch Boys High School | 43.73 |
| 5 | Zhan Bowden | Rangitoto College | 43.78 |
| 6 | Jamieson Braun | Auckland Grammar School | 46.36 |
| 7 | Alex Hansen | Marlborough Boys College | 46.83 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Paul Steyn | Bethlehem College | 40.23 |
| 2 | Benjamin Langley | One Tree Hill College | 40.45 |
| 3 | Noah Retford | Botany Downs Secondary College | 40.86 |
| 4 | Harry Williamson | Christchurch Boys High School | 42.07 |
| 5 | Benjie Fairclough | Mt Albert Grammar | 42.19 |
| 6 | Charles Howlett | Auckland Grammar School | 42.41 |
| 7 | Sean Newlands | Roncalli College | 42.78 |
| 8 | Joshua Ingham | St Patrick's College (Kilbirni | 43.99 |