| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | James Harding | Kings College | 2:04.68q |
| 2 | Reuben Beard | Scots College | 2:04.81q |
| 3 | Jed Thompson-Fawcett | John McGlashan College | 2:05.05q |
| 4 | Oliver Ashburn | Trident High School | 2:05.96 |
| 5 | Ollie Young | Kings High School | 2:05.98 |
| 6 | Josh Hagen | Wellington College | 2:09.17 |
| 7 | Kai Meiklejohn | Hamilton Boys High School | 2:15.12 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Matthew Clarke | Lincoln High School | 2:04.13q |
| 2 | Matt Gould | Westlake Boys High School | 2:05.02q |
| 3 | Jake Jackways | St Andrew's College | 2:07.00q |
| 4 | Will Taylor | St Peter's School | 2:07.13 |
| 5 | Blair Gowan | Whanganui High School | 2:15.07 |
| 6 | Greg Austin | Palmerston North Boys High Sch | 2:15.72 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Luke Hitchcock | Macleans College | 2:04.89q |
| 2 | Kosta Mills | Rathkeale College/Trinity Seni | 2:05.06q |
| 3 | Charles Roil | Lindisfarne College | 2:05.27q |
| 4 | Joshua Du Preez | Kerikeri High School | 2:05.53q |
| 5 | Samuel Doherty | St Bede's College | 2:05.85q |
| 6 | Daniel Cooper | Paraparaumu College | 2:17.72 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Josh Hou | John McGlashan College | 2:00.65q |
| 2 | William Johnston | St Peter's College (Auckland) | 2:01.40q |
| 3 | Logan Cowie | St Kentigern College | 2:01.44q |
| 4 | Oscar Crowe | Wellington College | 2:01.97q |
| 5 | Oliver McCormack | Nelson College | 2:04.94q |
| 6 | Joshua Collings | Westlake Boys High School | 2:06.82 |
| 7 | Jaidan Kesry | Rongotai College | 2:16.93 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Josh Hou | John McGlashan College | 1:57.77q |
| 2 | Logan Cowie | St Kentigern College | 1:58.13q |
| 3 | Luke Hitchcock | Macleans College | 1:58.93q |
| 4 | Kosta Mills | Rathkeale College/Trinity Seni | 1:59.88 |
| 5 | Oscar Crowe | Wellington College | 2:02.85 |
| 6 | Joshua Du Preez | Kerikeri High School | 2:02.91 |
| 7 | William Johnston | St Peter's College (Auckland) | 2:03.19 |
| 8 | Jake Jackways | St Andrew's College | 2:04.75 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | James Harding | Kings College | 1:57.89q |
| 2 | Matt Gould | Westlake Boys High School | 1:57.95q |
| 3 | Reuben Beard | Scots College | 1:58.06q |
| 4 | Charles Roil | Lindisfarne College | 1:58.19q |
| 5 | Jed Thompson-Fawcett | John McGlashan College | 1:58.29q |
| 6 | Samuel Doherty | St Bede's College | 2:01.77 |
| 7 | Matthew Clarke | Lincoln High School | 2:02.28 |
| 8 | Oliver McCormack | Nelson College | 2:03.13 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | James Harding | Kings College | 1:54.84 |
| 2 | Logan Cowie | St Kentigern College | 1:56.85 |
| 3 | Matt Gould | Westlake Boys High School | 1:57.76 |
| 4 | Reuben Beard | Scots College | 1:57.99 |
| 5 | Josh Hou | John McGlashan College | 1:58.10 |
| 6 | Luke Hitchcock | Macleans College | 1:58.39 |
| 7 | Jed Thompson-Fawcett | John McGlashan College | 1:58.83 |
| 8 | Charles Roil | Lindisfarne College | 2:00.29 |