| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Dan Gibbons | Kings College | 54.74 |
| 2 | Joseph Hos | Sacred Heart College (Auckland | 57.43 |
| 3 | Jope Vakacegu | Kelston Boys High School | 58.84 |
| 4 | Azariah Zillig-Taylor | Waiheke High School | 59.08 |
| 5 | Michel Hood | Waiheke High School | 1:00.11 |
| 6 | Stefan Catz | St Kentigern College | 1:01.07 |
| -- | Blake Forbes | Massey High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Nathan Ryden-Stokes | Mt Albert Grammar | 55.56 |
| 2 | Zane Allen | Dilworth School | 55.78 |
| 3 | Luke Ibbs | St Kentigern College | 57.48 |
| 4 | Stefan Hollier | Henderson High School | 57.64 |
| 5 | Liam Blake | Massey High School | 1:02.69 |
| -- | Nick Bone | Howick College | DNS |
| -- | Zach Margison | Penrose High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Oliver Johnson | St Kentigern College | 55.54 |
| 2 | William Koreman | Auckland Grammar School | 55.61 |
| 3 | William Coleman | Kings College | 57.21 |
| 4 | Heath Gibb | Mt Albert Grammar | 58.50 |
| 5 | Shaun Rawiri | Green Bay High School | 1:02.29 |
| 6 | Nathan Jones | Kelston Boys High School | 1:05.56 |
| -- | Beng-Wee (Steward) Lim | Avondale College | DNS |
| -- | Troy Ryder | Selwyn College | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Adam Thomas | Kings College | 54.52 |
| 2 | Jaxon Bonici | St Peter's College (Auckland) | 55.40 |
| 3 | hamish jackson-mee | Sacred Heart College (Auckland | 56.10 |
| 4 | James Calway | Howick College | 58.06 |
| -- | Shamus Bennell | Massey High School | DNS |
| -- | Oscar Bryce | Massey High School | DNS |
| -- | Denny Solomona | Otahuhu College | DNS |