| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Predesh Soobramoney | Long Bay College | 56.28q |
| 2 | Jamie Foster | Westlake Boys High School | 57.10q |
| 3 | Tom Mason | Glenfield College | 1:04.70q |
| -- | Rowan Kvalsvig | Kingsway School | DNS |
| -- | William Lloyd | Orewa College | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Ben Botica | Westlake Boys High School | 56.35q |
| 2 | Joseph Deng | Glenfield College | 1:12.16q |
| -- | Shane Grant | Long Bay College | DNS |
| -- | Hsadley Pegden | Kristin School | DNS |
| -- | Trent Wallace | Kristin School | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Ben Botica | Westlake Boys High School | 55.85 |
| 2 | Predesh Soobramoney | Long Bay College | 56.33 |
| -- | Joseph Deng | Glenfield College | DNS |
| -- | Jamie Foster | Westlake Boys High School | DNS |
| -- | Tom Mason | Glenfield College | DNS |