| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| -- | Chad Butson | Southland Boys High School | q |
| -- | Scott Eade | Southland Boys High School | q |
| -- | Rick Gutzewitz | Wakatipu High School | q |
| -- | Thomas Howie | James Hargest High School | q |
| -- | Cameron Kingipotiki | Aurora College | q |
| -- | Adam Kingsbury | Gore High School | q |
| -- | Ethan Smith | Central Southland College | q |
| -- | Joshua Winship | Southland Boys High School | q |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Chad Butson | Southland Boys High School | 57.37 |
| 2 | Scott Eade | Southland Boys High School | 59.89 |
| 3 | Rick Gutzewitz | Wakatipu High School | 1:01.01 |
| 4 | Ethan Smith | Central Southland College | 1:02.90 |
| 5 | Thomas Howie | James Hargest High School | 1:03.44 |
| 5 | Adam Kingsbury | Gore High School | 1:03.44 |
| -- | Cameron Kingipotiki | Aurora College | DNS |
| -- | Joshua Winship | Southland Boys High School | DNS |