| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Oska Inkster-Baynes | St Andrew's College | 2:03.68q |
| 2 | Gerard Trolove | St Bede's College | 2:07.51q |
| 3 | Albert Adcock | Christchurch Boys High Sc | 2:08.45q |
| -- | Semhar Gebregziabher | Mairehau High School | DNF |
| -- | Blake Houghton | St Bede's College | DNS |
| -- | Max Schmerder | Linwood College | DNF |
| -- | Geoff Scott | Shirley Boys High School | DNS |
| -- | Marc Smith | St Thomas of Canterbury C | DNS |
| -- | Matthew Van der Clay | St Thomas of Canterbury C | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Sam Mills | Christchurch Boys High Sc | 2:05.96q |
| 2 | Gus Rattray | Christ's College | 2:09.01q |
| 3 | Michael Hishon | St Bede's College | 2:09.32q |
| 4 | Bradley Tuhi | St Thomas of Canterbury C | 2:15.21q |
| 5 | Cai Edge | Rangiora New Life School | 2:15.28q |
| 6 | Evan Elder | Christ's College | 2:18.61q |
| -- | Addisu Asres | Papanui High School | DNS |
| -- | Johannes Kuthe | Linwood College | DNS |
| -- | Hamish O'Connell | Christchurch Boys High Sc | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Gus Rattray | Christ's College | 1:58.51 |
| 2 | Sam Mills | Christchurch Boys High Sc | 2:00.04 |
| 3 | Oska Inkster-Baynes | St Andrew's College | 2:01.78 |
| 4 | Albert Adcock | Christchurch Boys High Sc | 2:04.28 |
| 5 | Michael Hishon | St Bede's College | 2:08.83 |
| 6 | Evan Elder | Christ's College | 2:15.47 |
| -- | Cai Edge | Rangiora New Life School | DNS |
| -- | Gerard Trolove | St Bede's College | DNS |
| -- | Bradley Tuhi | St Thomas of Canterbury C | DNS |