| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Nathan Hill | Otago Boys High School | 4:27.93q |
| 2 | Nick Matthews | Nelson College | 4:29.14q |
| 3 | Benjamin Wall | Palmerston North Boys High Sch | 4:29.86q |
| 4 | Connor Tristram | Hamilton Boys High School | 4:30.40q |
| 5 | Stuart Hofmeyr | Westlake Boys High School | 4:33.68q |
| 6 | Josh Stoddard | John McGlashan College | 4:36.26q |
| 7 | James Reilly | St Patricks College Kilbirnie | 4:42.70 |
| 8 | George Guerin | Timaru Boy's High School | 4:43.29 |
| 9 | Liam Back | St Peter's College Auckland | 4:43.93 |
| 10 | Jack Gay | Wanganui Collegiate | 4:45.45 |
| 11 | Nikolai Allen | St Patricks College Silverstr | 4:47.80 |
| 12 | Jack Flannigan | Rangiora High School | 4:48.66 |
| 13 | William Scholten | Wellington College | 4:56.13 |
| 14 | Caleb Van Essen | Rangitoto College | 5:00.06 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Max Spencer | Rathkeale College/Trinity Sen | 4:29.21q |
| 2 | William Sinclair | St John's College | 4:31.57q |
| 3 | Isaiah Priddey | Hamilton Boys High School | 4:32.27q |
| 4 | Matthew Sutcliffe | Wellington College | 4:33.26q |
| 5 | Samuel Montgomerie | Hamilton Boys High School | 4:33.44q |
| 6 | Iain Wright | Ellesmere College | 4:33.53q |
| 7 | Mitchell Pallister | Auckland Grammar School | 4:33.62q |
| 8 | Andrew Ledger | Hutt International Boys School | 4:42.59q |
| 9 | Pickworth Fletcher | Motueka High School | 4:48.06 |
| 10 | Kyle Gullery | Burnside High School | 4:53.96 |
| 11 | Max Ireland | St John College | 4:58.16 |
| 12 | Michael Paine | St Patricks College Silverstr | 4:58.45 |
| 13 | Thomas Smith | Lincoln High School | 5:06.00 |
| 14 | Cameron Gardiner | Kings High School | 5:07.89 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Isaiah Priddey | Hamilton Boys High School | 3:57.19 |
| 2 | Max Spencer | Rathkeale College/Trinity Sen | 4:07.55 |
| 3 | Nathan Hill | Otago Boys High School | 4:07.70 |
| 4 | William Sinclair | St John's College | 4:10.98 |
| 5 | Nick Matthews | Nelson College | 4:16.36 |
| 6 | Samuel Montgomerie | Hamilton Boys High School | 4:17.21 |
| 7 | Connor Tristram | Hamilton Boys High School | 4:17.59 |
| 8 | Mitchell Pallister | Auckland Grammar School | 4:18.07 |
| 9 | Stuart Hofmeyr | Westlake Boys High School | 4:18.85 |
| 10 | Matthew Sutcliffe | Wellington College | 4:19.27 |
| 11 | Iain Wright | Ellesmere College | 4:20.85 |
| 12 | Andrew Ledger | Hutt International Boys School | 4:21.27 |
| 13 | Josh Stoddard | John McGlashan College | 4:23.31 |
| 14 | Benjamin Wall | Palmerston North Boys High Sch | 4:25.73 |