| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Frazer Wickes | Westlake Boys High School | 56.43q |
| 2 | Craig Smith | Christchurch Boys High School | 58.07q |
| 3 | Chris Girling-McLean | St Patrick's College (Silverst | 58.34q |
| 4 | Roy Davidson | Katikati College | 59.07 |
| 5 | Oliver Johnson | St Kentigern College | 1:00.20 |
| 6 | William Koramen | Auckland Grammar School | 1:01.17 |
| 7 | Callum Webber | Nayland College | 1:01.36 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Matthew Robinson | Southland Boys High School | 52.96q |
| 2 | Jake Quor | Waitakere College | 53.73q |
| 3 | Matthew Nesbitt | Wanganui Collegiate | 54.37q |
| 4 | Hamish O'Connell | Christchurch Boys High School | 54.87q |
| 5 | Ashleigh Lambert | Hastings Boys High School | 55.69q |
| 6 | Sean Young | St Patrick's College (Kilbirni | 58.35 |
| 7 | Robert Brown | Kings High School | 1:02.89 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Chad Butson | Southland Boys High School | 53.65q |
| 2 | Sam Briggs | Ashburton College | 54.24q |
| 3 | Liam Mitchell | Auckland Grammar School | 56.96q |
| 4 | Andrew Hodgson | Timaru Boys' High School | 57.58 |
| 5 | Brendan Jamieson | Tawa College | 57.90 |
| 6 | Cameron Ward | Westlake Boys High School | 58.29 |
| 7 | Matthew Szeto | Wellington College | 59.16 |
| -- | Tyson Tamakaha | Manawatu College | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Daniel Dyet | Rangitoto College | 51.92q |
| 2 | Gareth Hand | Mt Albert Grammar | 51.96q |
| 3 | Ashton Tuck | Taradale High School | 52.28q |
| 4 | Tomi Obafemi | Ashburton College | 54.11q |
| 5 | Declan Fuller | Rongotai College | 56.49q |
| 6 | Gregory Robertson | Southland Boys High School | 56.98 |
| 7 | Matt Murdoch | Hutt Valley High School | 58.70 |
| -- | Dylan Brown | St Thomas Of Canterbury Colleg | DNS |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Gareth Hand | Mt Albert Grammar | 52.19q |
| 2 | Ashton Tuck | Taradale High School | 52.37q |
| 3 | Daniel Dyet | Rangitoto College | 52.53q |
| 4 | Chris Girling-McLean | St Patrick's College (Silverst | 52.98q |
| 5 | Chad Butson | Southland Boys High School | 54.05 |
| 6 | Tomi Obafemi | Ashburton College | 54.52 |
| 7 | Declan Fuller | Rongotai College | 55.70 |
| 8 | Craig Smith | Christchurch Boys High School | 56.01 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Matthew Robinson | Southland Boys High School | 50.99q |
| 2 | Frazer Wickes | Westlake Boys High School | 51.95q |
| 3 | Matthew Nesbitt | Wanganui Collegiate | 52.26q |
| 4 | Jake Quor | Waitakere College | 52.85q |
| 5 | Sam Briggs | Ashburton College | 53.23 |
| 6 | Hamish O'Connell | Christchurch Boys High School | 54.35 |
| 7 | Liam Mitchell | Auckland Grammar School | 55.71 |
| 8 | Ashleigh Lambert | Hastings Boys High School | 56.21 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Matthew Robinson | Southland Boys High School | 50.20 |
| 2 | Frazer Wickes | Westlake Boys High School | 51.17 |
| 3 | Ashton Tuck | Taradale High School | 51.53 |
| 4 | Chris Girling-McLean | St Patrick's College (Silverst | 51.82 |
| 5 | Matthew Nesbitt | Wanganui Collegiate | 52.51 |
| 6 | Gareth Hand | Mt Albert Grammar | 52.54 |
| 7 | Jake Quor | Waitakere College | 53.34 |
| 8 | Daniel Dyet | Rangitoto College | 53.79 |