| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Werner Dunn | Pakuranga College | 53.93q |
| 2 | Frazer Wickes | Westlake Boys High School | 54.30q |
| 3 | Matthew Szeto | Wellington College | 54.74q |
| 4 | Ben Evans | St Bede's College | 55.30q |
| 5 | Hayden Gutry | St Pauls Collegiate (Hamilton) | 56.77 |
| 6 | Anton Melville | Te Awamutu College | 58.17 |
| 7 | William Koramen | Auckland Grammar School | 58.29 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Jono Sullivan | St Pauls Collegiate (Hamilton) | 55.20q |
| 2 | Martin Swart | Christchurch Boys High School | 55.75q |
| 3 | Campbell Wu | Auckland Grammar School | 56.07q |
| 4 | Sam Paddock | Wellington College | 57.29 |
| 5 | Zachary Press | St Patrick's College (Silverst | 57.35 |
| 6 | Thaddeus Anderson | St Patrick's College (Kilbirni | 57.84 |
| -- | Jackson Smith | Hutt International Boys' Schoo | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Chad Butson | Southland Boys High School | 54.76q |
| 2 | Tomi Obafemi | Ashburton College | 55.24q |
| 3 | Alister Perkinson | St Patrick's College (Silverst | 55.53q |
| 4 | Luke Tomlinson | Tawa College | 55.77q |
| 5 | Bradley Martin | Wanganui High School | 56.08 |
| 6 | Jack Morrison | Christchurch Boys High School | 57.68 |
| 7 | David Henderson | St Kentigern College | 1:00.16 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Shernal Prasad | Hawera High School | 54.13q |
| 2 | Cameron Ward | Westlake Boys High School | 54.40q |
| 3 | Dillon Todd | Otago Boys High School | 54.71q |
| 4 | Alistair Adams | St Peter's School | 55.09q |
| 5 | Elliot Harvey | Marlborough Boys College | 55.86q |
| 6 | Albert Adcock | Christchurch Boys High School | 56.70 |
| 7 | Ben Aiken | Feilding High School | 59.76 |
| 8 | Josh Gifford | Rongotai College | 1:03.33 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Werner Dunn | Pakuranga College | 53.22q |
| 2 | Frazer Wickes | Westlake Boys High School | 53.95q |
| 3 | Jono Sullivan | St Pauls Collegiate (Hamilton) | 54.26q |
| 4 | Dillon Todd | Otago Boys High School | 54.54q |
| 5 | Alistair Adams | St Peter's School | 54.88 |
| 6 | Campbell Wu | Auckland Grammar School | 55.84 |
| 7 | Martin Swart | Christchurch Boys High School | 55.85 |
| 8 | Elliot Harvey | Marlborough Boys College | 56.29 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Shernal Prasad | Hawera High School | 53.00q |
| 2 | Chad Butson | Southland Boys High School | 53.14q |
| 3 | Cameron Ward | Westlake Boys High School | 53.44q |
| 4 | Tomi Obafemi | Ashburton College | 53.52q |
| 5 | Ben Evans | St Bede's College | 55.03 |
| 6 | Matthew Szeto | Wellington College | 55.35 |
| 7 | Luke Tomlinson | Tawa College | 55.54 |
| 8 | Alister Perkinson | St Patrick's College (Silverst | 55.54 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Frazer Wickes | Westlake Boys High School | 47.79 |
| 2 | Werner Dunn | Pakuranga College | 51.77 |
| 3 | Chad Butson | Southland Boys High School | 52.40 |
| 4 | Tomi Obafemi | Ashburton College | 53.17 |
| 5 | Shernal Prasad | Hawera High School | 53.26 |
| 6 | Cameron Ward | Westlake Boys High School | 54.27 |
| 7 | Dillon Todd | Otago Boys High School | 55.05 |
| 8 | Jono Sullivan | St Pauls Collegiate (Hamilton) | 55.32 |