| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Jharn Winter | Southland Boys High School | 1:01.93q |
| 2 | Todd Ellis | Northern Southland College | 1:05.61q |
| 3 | Leighton Van Rooijen | Central Southland College | 1:06.97q |
| 4 | Jade Whatuira | Aparima College | 1:09.28 |
| 5 | Justin Boyd | Central Southland College | 1:19.84 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Connor O'Brien | Southland Boys High School | 1:02.02 |
| 2 | liam aston | Wakatipu High School | 1:02.26q |
| 3 | Travis Millan | Gore High School | 1:03.00q |
| 4 | Joseph Steiner | Central Southland College | 1:08.33q |
| 5 | Anthony Kay | Northern Southland College | 1:08.55q |
| 6 | Scott Robertson | Gore High School | 1:12.19 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Jharn Winter | Southland Boys High School | 1:01.47 |
| 2 | liam aston | Wakatipu High School | 1:01.78 |
| 3 | Travis Millan | Gore High School | 1:04.18 |
| 4 | Todd Ellis | Northern Southland College | 1:06.77 |
| 5 | Leighton Van Rooijen | Central Southland College | 1:07.46 |
| 6 | Joseph Steiner | Central Southland College | 1:08.76 |
| 7 | Anthony Kay | Northern Southland College | 1:12.15 |