| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Alfie Steedman | Westlake Boys High School | 4:18.47q |
| 2 | Quinn Moss | Kings College | 4:22.17q |
| 3 | George Wyllie | Tauranga Boys' College | 4:22.30q |
| 4 | Jude Deaker | Wakatipu High School | 4:22.38q |
| 5 | Jamie Maunder | Westlake Boys High School | 4:22.63q |
| 6 | Zavier Brown | New Plymouth Boys High School | 4:23.17q |
| 7 | Bede Colbourne | Francis Douglas Memorial Colle | 4:27.03q |
| 8 | Brook Yu | Avondale College | 4:30.30q |
| 9 | Cameron Fitzjohn | Tauranga Boys' College | 4:31.34 |
| 10 | Matthew Sinclair | Whanganui Collegiate | 4:32.62 |
| 11 | Harrison Wills | Wellington College | 4:36.09 |
| 12 | Max Aldridge | Christchurch Boys High School | 4:41.53 |
| 13 | Bernard Stallard | St Patrick's College (Kilbirni | 4:44.34 |
| 14 | Charlie Forde | Central Southland College | 4:45.79 |
| 15 | Liam Smith | Taradale High School | 4:53.05 |
| 16 | Theo Needham | Rosehill College | 5:09.73 |
| 17 | Tiakiriri Manaia | Auckland Grammar School | 5:27.82 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Hamish Murray | Aquinas College | 4:22.00q |
| 2 | Alec Ball | Feilding High School | 4:22.36q |
| 3 | Cooper Wightman | Christchurch Boys High School | 4:22.63q |
| 4 | Harry Witheridge | Westlake Boys High School | 4:23.95q |
| 5 | Kayden Theron | Papamoa College | 4:24.14q |
| 6 | Caleb Litolff | Tauranga Boys' College | 4:24.71q |
| 7 | Mark Weir | Christchurch Boys High School | 4:33.12 |
| 8 | Alex Wilson | Hastings Boys High School | 4:38.20 |
| 9 | James Ellwood | Wellington College | 4:45.80 |
| 10 | Daniel Kovylov | Avondale College | 4:47.46 |
| 11 | Jack Mason | New Plymouth Boys High School | 4:47.92 |
| 12 | Josh Siloy | Taieri College | 4:48.63 |
| 13 | Noah Lazayres | St Peter's College (Auckland) | 4:49.33 |
| 14 | Charles Edge | Rathkeale College/Trinity Seni | 4:59.41 |
| 15 | Blake Candish | Whanganui Collegiate | 5:01.73 |
| 16 | Xavier Clark | Auckland Grammar School | 5:04.84 |
| -- | James Weber | Wakatipu High School | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Alfie Steedman | Westlake Boys High School | 3:53.47 |
| 2 | Cooper Wightman | Christchurch Boys High School | 3:55.64 |
| 3 | George Wyllie | Tauranga Boys' College | 4:03.97 |
| 4 | Hamish Murray | Aquinas College | 4:13.57 |
| 5 | Quinn Moss | Kings College | 4:14.29 |
| 6 | Jude Deaker | Wakatipu High School | 4:14.53 |
| 7 | Jamie Maunder | Westlake Boys High School | 4:19.85 |
| 8 | Alec Ball | Feilding High School | 4:21.35 |
| 9 | Caleb Litolff | Tauranga Boys' College | 4:27.33 |
| 10 | Bede Colbourne | Francis Douglas Memorial Colle | 4:27.74 |
| 11 | Brook Yu | Avondale College | 4:32.70 |
| 12 | Harry Witheridge | Westlake Boys High School | 4:33.62 |
| 13 | Kayden Theron | Papamoa College | 4:33.69 |
| -- | Zavier Brown | New Plymouth Boys High School | DNS |