| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Max Attwell | Wanganui Collegiate | 39.10q |
| 2 | Alex Mander | Mariehau High School | 40.37q |
| 3 | James Oliver | St John College | 41.00q |
| 4 | Brodie Thomas | St Bede's College | 41.72q |
| 5 | Kilian Segers | Mt Albert Grammar | 41.82q |
| 6 | Felix McDonald | Kings High School | 42.14 |
| 7 | James Wilkins | St Paul's Collegiate Ham | 42.84 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Niven Longopoa | Mt Albert Grammar | 40.39q |
| 2 | Charlie McCartin | Wanganui Collegiate | 40.99q |
| 3 | Aaron Booth | Mt Albert Grammar | 41.07q |
| 4 | Kenneth Tuffin | St Patricks College Silverstr | 41.83 |
| 5 | Tim Baker | Central Southland College | 41.97 |
| 6 | Caylem Cook | Francis Douglas Memorial Colle | 44.20 |
| 7 | Tom Maslin | St Bede's College | 45.75 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Max Attwell | Wanganui Collegiate | 38.64 |
| 2 | Alex Mander | Mariehau High School | 38.88 |
| 3 | Charlie McCartin | Wanganui Collegiate | 38.97 |
| 4 | Niven Longopoa | Mt Albert Grammar | 39.83 |
| 5 | Aaron Booth | Mt Albert Grammar | 39.86 |
| 6 | James Oliver | St John College | 41.51 |
| 7 | Brodie Thomas | St Bede's College | 42.36 |
| 8 | Kilian Segers | Mt Albert Grammar | 45.91 |