| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Nicholas Kjestrup | New Plymouth Boys High School | 52.16q |
| 2 | Harry Dods | Lindisfarne College | 53.63q |
| 3 | Connor Fifita | Tauranga Boys College | 54.78q |
| 4 | Andrew Jordan | St Patricks College Silverstr | 56.55 |
| 5 | Jack Hunter | Avondale College | 59.76 |
| 6 | Matthew Fenn | Kristin School | 1:00.81 |
| -- | Ethan Arbuckle | Hawera High School | DNS |
| -- | Culainn Stringer | Motueka High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Alex Haye | St Patricks College Kilbirnie | 52.04q |
| 2 | Arden Andre | St John's College | 52.14q |
| 3 | Sam Kearins | Palmerston North Boys High Sch | 52.64q |
| 4 | Louis Young | Mahurangi College | 52.74q |
| 5 | Joe Allison | John McGlashan College | 54.59 |
| 6 | Mark Graham | St Peter's College Auckland | 56.59 |
| 7 | Adam Scott | Te Awamutu College | 58.40 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Liam Fitzsimons | Auckland Grammar School | 52.25q |
| 2 | Javon McCallum | New Plymouth Boys High School | 52.35q |
| 3 | Edze Bierema | St Andrews College | 52.55q |
| 4 | Joshua MacLeod | Lindisfarne College | 52.74q |
| 5 | Christian Blackie | Otago Boys High School | 52.86q |
| 6 | James Young | St John's College | 53.57q |
| 7 | Marcos Ingham | Rosmini College | 54.54 |
| -- | Hunter McKenzie | Christ's College | DQ |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Bailey Stewart | Sacred Heart College Auck | 52.73q |
| 2 | Chris McNoe | Otago Boys High School | 52.87q |
| 3 | Mitchell Chandler | Nayland College | 53.08q |
| 4 | Joel Agnew | Middleton Grange School | 53.15q |
| 5 | Thomas England | St Patricks College Silverstr | 54.25 |
| 6 | Jace Donnelly | St Bede's College | 55.40 |
| 7 | Taylor Wynne | Hamilton Boys High School | 55.73 |
| 8 | Reece Thompson | Tauranga Boys College | 56.06 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Sam Stewart | James Hargest High School | 51.35q |
| 2 | Paddy Kellow | Palmerston North Boys High Sch | 51.47q |
| 3 | Dhruv Raman | Rathkeale College/Trinity Sen | 51.53q |
| 4 | Dylan Brown | St Peter's School Camb | 51.75q |
| 5 | Bryan Route | Botany Downs Secondary College | 52.55q |
| 6 | Sean Donald | Mt Albert Grammar | 53.29q |
| 7 | Aizac MacKenzie | Rongotai College | 53.95q |
| 8 | Sol Sommervile | Shirley Boys High School | 54.39 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Arden Andre | St John's College | 50.62q |
| 2 | Sam Stewart | James Hargest High School | 51.17q |
| 3 | Paddy Kellow | Palmerston North Boys High Sch | 51.62q |
| 4 | Edze Bierema | St Andrews College | 52.16q |
| 5 | Joshua MacLeod | Lindisfarne College | 52.66 |
| 6 | Sam Kearins | Palmerston North Boys High Sch | 52.77 |
| 7 | Louis Young | Mahurangi College | 53.08 |
| 8 | Aizac MacKenzie | Rongotai College | 56.27 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Liam Fitzsimons | Auckland Grammar School | 51.81q |
| 2 | Joel Agnew | Middleton Grange School | 52.62q |
| 3 | Nicholas Kjestrup | New Plymouth Boys High School | 52.82 |
| 4 | Chris McNoe | Otago Boys High School | 53.31 |
| 5 | Harry Dods | Lindisfarne College | 54.07 |
| 6 | Dylan Brown | St Peter's School Camb | 54.12 |
| 7 | Sean Donald | Mt Albert Grammar | 54.85 |
| 8 | Connor Fifita | Tauranga Boys College | 56.76 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Bailey Stewart | Sacred Heart College Auck | 51.73q |
| 2 | Alex Haye | St Patricks College Kilbirnie | 51.76q |
| 3 | Dhruv Raman | Rathkeale College/Trinity Sen | 52.25 |
| 4 | Javon McCallum | New Plymouth Boys High School | 52.32 |
| 5 | Mitchell Chandler | Nayland College | 53.16 |
| 6 | Bryan Route | Botany Downs Secondary College | 53.95 |
| 7 | Christian Blackie | Otago Boys High School | 54.14 |
| 8 | James Young | St John's College | 54.52 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Bailey Stewart | Sacred Heart College Auck | 46.67 |
| 2 | Alex Haye | St Patricks College Kilbirnie | 48.69 |
| 3 | Liam Fitzsimons | Auckland Grammar School | 49.45 |
| 4 | Sam Stewart | James Hargest High School | 49.55 |
| 5 | Paddy Kellow | Palmerston North Boys High Sch | 50.21 |
| 6 | Arden Andre | St John's College | 50.97 |
| 7 | Joel Agnew | Middleton Grange School | 51.59 |
| 8 | Edze Bierema | St Andrews College | 52.18 |