| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Andre Le Pine-Day | Palmerston North Boys High Sch | 4:11.33q |
| 2 | Ben Bidois | Cambridge High School | 4:11.88q |
| 3 | William Sinclair | Wanganui Collegiate | 4:12.26q |
| 4 | Stuart Hofmeyr | Westlake Boys High School | 4:12.42q |
| 5 | Benjamin Wall | Palmerston North Boys High Sch | 4:12.81q |
| 6 | Sam Duncan | Auckland Grammar School | 4:13.17q |
| 7 | Nathan Hill | Otago Boys High School | 4:13.41q |
| 8 | Liam Chesney | St Patrick's College (Kilbirni | 4:15.43q |
| 9 | Finn Ward | Auckland Grammar School | 4:16.36q |
| 10 | Nick Matthews | Nelson College | 4:16.87 |
| 11 | Oliver Marshall | Napier Boys High School | 4:17.37 |
| 12 | Gareth Harcombe | Wakatipu High School | 4:21.19 |
| 13 | William Scharpf | Kings High School | 4:25.56 |
| 14 | Ruaridh Ferguson | Wellington College | 4:26.53 |
| 15 | Alasdair Tremlett | Sacred Heart College (Auckland | 4:27.59 |
| 16 | James Blake | St Andrew's College | 4:29.87 |
| 17 | Daniel Perkinson | St Patrick's College (Silverst | 4:45.28 |
| 18 | Alex van Hooijdonk | St John College | 4:53.24 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Daniel Roswell | Burnside High School | 4:22.84q |
| 2 | Samuel Tanner | Bethlehem College | 4:23.08q |
| 3 | Jared Thomson | Kerikeri High School | 4:25.26q |
| 4 | Fletcher Pickworth | Motueka High School | 4:26.52q |
| 5 | Jack Elliott | New Plymouth Boys High School | 4:26.75q |
| 6 | Max Flannigan | Rangiora High School | 4:28.34 |
| 7 | Mason Waterworth | St Patrick's College (Kilbirni | 4:29.05 |
| 8 | Aleksander Cheifetz | Wakatipu High School | 4:29.70 |
| 9 | Callum Hockey | Rangitoto College | 4:30.91 |
| 10 | Oskar Victor | Christchurch Boys High School | 4:35.13 |
| 11 | Hugh Charles | Christchurch Boys High School | 4:35.92 |
| 12 | Andrew Mulqueen | Auckland Grammar School | 4:37.07 |
| 13 | Jack Divers | Otago Boys High School | 4:37.11 |
| 14 | Benjamin Conder | Wanganui Collegiate | 4:37.50 |
| 15 | Nathan Cochrane | Christchurch Boys High School | 4:41.42 |
| 16 | Ted Yee | Ashburton College | 4:41.49 |
| -- | Ruaidhri Brosnan | John McGlashan College | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Samuel Tanner | Bethlehem College | 3:55.38 |
| 2 | Fletcher Pickworth | Motueka High School | 4:01.69 |
| 3 | Ben Bidois | Cambridge High School | 4:01.73 |
| 4 | Stuart Hofmeyr | Westlake Boys High School | 4:03.08 |
| 5 | Nathan Hill | Otago Boys High School | 4:03.55 |
| 6 | Daniel Roswell | Burnside High School | 4:04.21 |
| 7 | Jack Elliott | New Plymouth Boys High School | 4:06.21 |
| 8 | Liam Chesney | St Patrick's College (Kilbirni | 4:07.09 |
| 9 | Andre Le Pine-Day | Palmerston North Boys High Sch | 4:08.12 |
| 10 | Finn Ward | Auckland Grammar School | 4:12.73 |
| 11 | William Sinclair | Wanganui Collegiate | 4:13.00 |
| 12 | Jared Thomson | Kerikeri High School | 4:14.78 |
| 13 | Benjamin Wall | Palmerston North Boys High Sch | 4:23.60 |
| 14 | Sam Duncan | Auckland Grammar School | 4:23.84 |