| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Jake Quor | Waitakere College | 53.24 |
| 2 | Jacob Wilkinson | Auckland Grammar School | 55.21 |
| 3 | Stuart McVinnie | Mt Roskill Grammar | 55.24 |
| 4 | Nick Lawrence | Kings College | 55.71 |
| 5 | Tim Stokes | St Kentigern College | 56.41 |
| 6 | Tony An | Waitakere College | 58.05 |
| -- | Grey Sean | Auckland Grammar School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Liam Mitchell | Auckland Grammar School | 54.92 |
| 2 | William Coleman | Kings College | 56.86 |
| 3 | tim blundell | Sacred Heart College (Auckland | 58.60 |
| 4 | Leo Grigg | Avondale College | 59.33 |
| 5 | alex polglase | Sacred Heart College (Auckland | 1:00.11 |
| -- | Tipene Edgecombe-Wilson | Rutherford College | DNS |
| -- | Naweed Ibram | Mt Roskill Grammar | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Andrew McIntyre-Robinson | Lynfield College | 55.62 |
| 2 | Campbell Loudon | Kings College | 56.09 |
| 3 | Jonathan Koh | St Peter's College (Auckland) | 56.49 |
| 4 | Juno Bareham | Massey High School | 58.91 |
| -- | Reg Dawson | Selwyn College | DNS |
| -- | Brad Stanfield | St Kentigern College | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Gareth Hand | Mt Albert Grammar | 52.16 |
| 2 | Oliver Johnson | St Kentigern College | 56.13 |
| 3 | Luke Trenter | Auckland Grammar School | 58.21 |
| 4 | Matangi Latu | Otahuhu College | 59.38 |
| 5 | Josh Williams | Waiheke High School | 1:00.03 |
| 6 | Luke Kang | Lynfield College | 1:10.11 |
| -- | Charles (Kae) Combridge | Avondale College | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Scott Allison | Sacred Heart College (Auckland | 54.78 |
| 2 | Andre Jaques | Kings College | 54.98 |
| 3 | Matthew Killip | Mt Albert Grammar | 56.46 |
| 4 | Jonnie Black | Mt Roskill Grammar | 57.21 |
| 5 | Beng-Wee (Steward) Lim | Avondale College | 1:09.53 |
| -- | hamish jackson-mee | Sacred Heart College (Auckland | DNS |