| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Samuel Wilson | Ashburton College | 54.86q |
| 2 | Chris Gillies | Auckland Grammar School | 55.85q |
| 3 | Caylum Merrick | Tauranga Boys' College | 56.06 |
| 4 | Issac Main | Te Awamutu College | 56.36 |
| 5 | Roy McGrath | St Patrick's College (Silverst | 59.67 |
| -- | Jake Matheson | Hamilton Boys High School | DNS |
| -- | Daniel Murray | Otago Boys High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Tom Daly | Auckland Grammar School | 53.65q |
| 2 | Cameron Hayton | Palmerston North Boys High Sch | 54.45q |
| 3 | Logan Smith | Lindisfarne College | 54.78q |
| 4 | Adam Cahill | Wellington College | 55.85q |
| 5 | Rhys Martin | Burnside High School | 59.95 |
| 6 | Bas Van Est | Thames High School | 1:03.14 |
| -- | Nick Jones | Mt Roskill Grammar | DQ |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Paul Innes | Otago Boys High School | 52.98q |
| 2 | Nikolas Vincent | Hawera High School | 53.42q |
| 3 | luke crombie | Hastings Boys High School | 54.22q |
| 4 | Jason Redhead | Mountainview High School | 54.82q |
| 5 | Leighton Bill | Westland High School | 55.10q |
| 6 | Riley O'Donnell | Hamilton Boys High School | 55.59q |
| 7 | MARK BUGDEN | Verdon College | 59.12 |
| -- | Liam Neale | Cook Islands | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Hautahi Kingi | Wanganui Collegiate | 54.42q |
| 2 | Ben Hawkes | Wellington College | 54.64q |
| 3 | Luke Crase | Tauranga Boys' College | 55.26q |
| 4 | Jono Leach | Marlborough Boys College | 55.90q |
| 5 | Max Curtis | St Patrick's College (Silverst | 56.04 |
| 6 | Malcolm Ash | Auckland Grammar School | 57.00 |
| 7 | mark ryan | Hastings Boys High School | 57.63 |
| 8 | Robert Mills | Christ's College | 57.65 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Samuel Wilson | Ashburton College | 52.16q |
| 2 | Paul Innes | Otago Boys High School | 52.76q |
| 3 | luke crombie | Hastings Boys High School | 53.01q |
| 4 | Chris Gillies | Auckland Grammar School | 53.20q |
| 5 | Nikolas Vincent | Hawera High School | 53.89 |
| 6 | Luke Crase | Tauranga Boys' College | 54.64 |
| 7 | Jono Leach | Marlborough Boys College | 55.92 |
| 8 | Leighton Bill | Westland High School | 55.97 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Cameron Hayton | Palmerston North Boys High Sch | 52.25q |
| 2 | Logan Smith | Lindisfarne College | 52.75q |
| 3 | Hautahi Kingi | Wanganui Collegiate | 53.02q |
| 4 | Tom Daly | Auckland Grammar School | 53.24q |
| 5 | Jason Redhead | Mountainview High School | 54.62 |
| 6 | Ben Hawkes | Wellington College | 55.20 |
| 7 | Adam Cahill | Wellington College | 57.75 |
| -- | Riley O'Donnell | Hamilton Boys High School | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Samuel Wilson | Ashburton College | 49.38 |
| 2 | Cameron Hayton | Palmerston North Boys High Sch | 51.03 |
| 3 | luke crombie | Hastings Boys High School | 51.85 |
| 4 | Paul Innes | Otago Boys High School | 52.57 |
| 5 | Chris Gillies | Auckland Grammar School | 53.22 |
| 6 | Hautahi Kingi | Wanganui Collegiate | 53.38 |
| 7 | Logan Smith | Lindisfarne College | 53.69 |
| 8 | Tom Daly | Auckland Grammar School | 55.25 |