| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Andrew Whyte | South Otago High School | 51.34 |
| 2 | Ben Jowsey | Kaikorai Valley College | 52.38 |
| 3 | Josiah Hutchison | Blue Mountain College | 55.58 |
| 4 | Dominik Yanzick | St Kevin's College | 56.48 |
| 5 | Aiden Scott | Otago Boys High School | 1:01.61 |
| -- | Patrick Beamish | John McGlashan | DQ |