| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Mark Burnett | Kings High School | 1:00.10q |
| 2 | Henrie Njob-Anti | Otago Boys High School | 1:01.24q |
| 3 | Daniel Stewart | Taieri College | 1:01.70q |
| 4 | chris mackechnie | Kaikorai Valley College | 1:06.07q |
| -- | Drew Gillies | Taieri College | DNS |
| -- | Tyler Haua | Taieri College | DNS |
| -- | Jared McLachlan | Cromwell College | DNS |
| -- | Ryan Warhurst | Cromwell College | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Levi Rye | St Kevin's College | 59.06q |
| 2 | Kane Attrill | Kings High School | 1:01.73q |
| 3 | Josh Jarvie | Otago Boys High School | 1:02.47q |
| 4 | Jesse Te Maiharoa | Otago Boys High School | 1:09.90q |
| 5 | daniel macmanus | Kaikorai Valley College | 1:11.28 |
| 6 | Luke Dolamore | Cromwell College | 1:20.26 |
| -- | Troi Kingsford | Cromwell College | DNS |
| -- | Matti Kuiti | South Otago High School | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Levi Rye | St Kevin's College | 1:00.75 |
| 2 | Mark Burnett | Kings High School | 1:03.29 |
| 3 | Kane Attrill | Kings High School | 1:04.61 |
| 4 | chris mackechnie | Kaikorai Valley College | 1:08.70 |
| -- | Josh Jarvie | Otago Boys High School | DNS |
| -- | Henrie Njob-Anti | Otago Boys High School | DNS |
| -- | Daniel Stewart | Taieri College | DNS |
| -- | Jesse Te Maiharoa | Otago Boys High School | DNS |