| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Matthew Robinson | Southland Boys High School | 52.55q |
| 2 | Ilya Demeshev | Wellington College | 52.86q |
| 3 | Christopher Girling-McLean | Rathkeale College/Trinity Sen | 53.45q |
| 4 | Chris Landon | Auckland Grammar School | 54.28q |
| 5 | Richard Thompson | Timaru Boys' High School | 54.75q |
| 6 | Alex Wells Green | Kristin School | 56.88 |
| 7 | Ryan Stokes | Springbank School | 1:00.43 |
| -- | Royd Hodgson | Whangarei Boys High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Brandon Spencer | Southland Boys High School | 50.96q |
| 2 | Kimami Sitauti | Mt Albert Grammar | 53.60q |
| 3 | Andrew Catlin | St Peter's School | 55.15q |
| 4 | Zak Simaga | Otahuhu College | 56.27q |
| 5 | Matthew Szeto | Wellington College | 58.88 |
| 6 | Tekauenga Lee | Sacred Heart College (Auckland | 59.58 |
| 7 | Jonathan Koh | St Peter's College (Auckland) | 1:02.72 |
| 8 | MICHAEL BUYS | Wanganui High School | 1:03.72 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Mathew Riley | Auckland Grammar School | 53.55q |
| 2 | Frazer Wickes | Westlake Boys High School | 53.67q |
| 3 | Josh Chettleburgh | Palmerston North Boys High Sch | 54.44q |
| 4 | Tim Manson | Christ's College | 55.18q |
| 5 | Dylan McKay | Wellington College | 56.31 |
| 6 | JAMES JOBE | Matamata College | 57.24 |
| 7 | Campbell Harvey | Marlborough Boys College | 1:00.44 |
| -- | Joseph Everest | Hastings Boys High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Sam Fox | Rotorua Lakes High School | 52.66q |
| 2 | Daniel Dyet | Rangitoto College | 53.40q |
| 3 | Joel Armstrong | Middleton Grange School | 53.74q |
| 4 | Samuel Murphy | Timaru Boys' High School | 54.23q |
| 5 | Jake Quor | Waitakere College | 54.57q |
| 6 | Declan Fuller | Rongotai College | 56.85 |
| 7 | Oliver Kay | St Pauls Collegiate (Hamilton) | 57.19 |
| 8 | Mason Glenny | Wanganui Collegiate | 57.37 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Ashton Tuck | Taradale High School | 53.74q |
| 2 | CHRISTO CREFFIER | Havelock North High School | 53.91q |
| 3 | Scott Mainwaring | Tauranga Boys' College | 55.01q |
| 4 | Andrew McIntyre-Robinson | Lynfield College | 55.11q |
| 5 | Alex Singers | Pukekohe High School | 55.47q |
| 6 | Roy Davidson | Katikati College | 55.89q |
| 7 | Liam Mitchell | Auckland Grammar School | 56.41 |
| 8 | Luke Waterman | Orewa College | 1:00.11 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Brandon Spencer | Southland Boys High School | 51.75q |
| 2 | Ilya Demeshev | Wellington College | 52.95q |
| 3 | Daniel Dyet | Rangitoto College | 53.58q |
| 4 | Josh Chettleburgh | Palmerston North Boys High Sch | 53.66 |
| 5 | Richard Thompson | Timaru Boys' High School | 55.59 |
| 6 | Zak Simaga | Otahuhu College | 56.57 |
| 7 | Joel Armstrong | Middleton Grange School | 57.08 |
| 8 | Jake Quor | Waitakere College | 57.57 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Ashton Tuck | Taradale High School | 52.62q |
| 2 | Matthew Robinson | Southland Boys High School | 53.14q |
| 3 | Kimami Sitauti | Mt Albert Grammar | 54.43 |
| 4 | Chris Landon | Auckland Grammar School | 54.47 |
| 5 | Andrew McIntyre-Robinson | Lynfield College | 55.72 |
| 6 | Scott Mainwaring | Tauranga Boys' College | 55.72 |
| 7 | Roy Davidson | Katikati College | 56.44 |
| -- | Christopher Girling-McLean | Rathkeale College/Trinity Sen | DNS |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Sam Fox | Rotorua Lakes High School | 52.62q |
| 2 | CHRISTO CREFFIER | Havelock North High School | 53.03q |
| 3 | Mathew Riley | Auckland Grammar School | 53.45q |
| 4 | Frazer Wickes | Westlake Boys High School | 53.65 |
| 5 | Samuel Murphy | Timaru Boys' High School | 54.74 |
| 6 | Tim Manson | Christ's College | 54.86 |
| 7 | Alex Singers | Pukekohe High School | 54.87 |
| 8 | Andrew Catlin | St Peter's School | 56.51 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Brandon Spencer | Southland Boys High School | 50.33 |
| 2 | Matthew Robinson | Southland Boys High School | 52.02 |
| 3 | Ashton Tuck | Taradale High School | 52.18 |
| 4 | Ilya Demeshev | Wellington College | 52.40 |
| 5 | Sam Fox | Rotorua Lakes High School | 52.43 |
| 6 | CHRISTO CREFFIER | Havelock North High School | 53.10 |
| 7 | Daniel Dyet | Rangitoto College | 53.30 |
| 8 | Mathew Riley | Auckland Grammar School | 54.28 |