| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Desmond Reddy | Rongotai College | 4:32.07q |
| 2 | Sam Ruthe | Tauranga Boys' College | 4:32.11q |
| 3 | Justin Cunningham | Freyberg High School | 4:32.17q |
| 4 | Max Wilkins | Auckland Grammar School | 4:32.28q |
| 5 | Caleb Litolff | Tauranga Boys' College | 4:32.33q |
| 6 | Christian Geldenhuys | Macleans College | 4:32.33q |
| 7 | Kupa Rule | St Andrew's College | 4:32.39q |
| 8 | Eliot Ramousse | Burnside High School | 4:32.42 |
| 9 | Kalym Chalmers | Ashburton College | 4:32.54 |
| 10 | Oliver Foley | Francis Douglas Memorial Colle | 4:33.76 |
| 11 | George Lewis | Havelock North High School | 4:40.62 |
| 12 | Xavier Clark | Auckland Grammar School | 4:41.29 |
| 13 | Carlitos Morellon Anderson | Te Paepae o Aotea | 4:41.86 |
| 14 | Guy Lester | Scots College | 4:43.58 |
| 15 | Cohnor Walsh | St Andrew's College | 4:48.77 |
| 16 | Lachlan Maclean | St Patrick's College (Kilbirni | 4:50.02 |
| 17 | Daniel Harrison | Te Awamutu College | 5:17.48 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Vaughan Murray | Aquinas College | 4:16.63q |
| 2 | Logan Hopfler | Wellington College | 4:17.10q |
| 3 | Alex MacBeth | Wellington College | 4:17.18q |
| 4 | Ben Oxford | Macleans College | 4:17.24q |
| 5 | Kingston Ryan | Rotorua Boys' High School | 4:18.28q |
| 6 | Miller Ferguson | New Plymouth Boys High School | 4:18.65q |
| 7 | Jack Mason | New Plymouth Boys High School | 4:19.38q |
| 8 | David Sinclair | Whanganui Collegiate | 4:20.40 |
| 9 | Jude Jeffery | Tauranga Boys' College | 4:25.46 |
| 10 | Macrae Smith | Shirley Boys High School | 4:29.50 |
| 11 | Keagan Gouws YC | Macleans College | 4:32.93 |
| 12 | Tom Pescini | Wellington College | 4:37.79 |
| 13 | Thomas Evitt | Westlake Boys High School | 4:42.51 |
| 14 | Cullum Rayner | Marlborough Boys College | 4:49.38 |
| 15 | Leo de Monchy | Cashmere High School | 4:52.07 |
| 16 | Hosea Wood | Burnside High School | 4:59.72 |
| 17 | Monty Bailey | Auckland Grammar School | 5:14.25 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Ben Oxford | Macleans College | 4:06.87 |
| 2 | Sam Ruthe | Tauranga Boys' College | 4:07.27 |
| 3 | Logan Hopfler | Wellington College | 4:09.41 |
| 4 | Justin Cunningham | Freyberg High School | 4:10.01 |
| 5 | Alex MacBeth | Wellington College | 4:10.16 |
| 6 | Kingston Ryan | Rotorua Boys' High School | 4:18.42 |
| 7 | Desmond Reddy | Rongotai College | 4:18.84 |
| 8 | Kupa Rule | St Andrew's College | 4:24.03 |
| 9 | Vaughan Murray | Aquinas College | 4:25.30 |
| 10 | Caleb Litolff | Tauranga Boys' College | 4:26.29 |
| 11 | Christian Geldenhuys | Macleans College | 4:29.58 |
| 12 | Miller Ferguson | New Plymouth Boys High School | 4:31.02 |
| 13 | Max Wilkins | Auckland Grammar School | 4:31.15 |
| 14 | Jack Mason | New Plymouth Boys High School | 4:40.51 |