| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Matthew McLellan | Waitaki Boys' High School | 57.35q |
| 2 | Ben Collerton | St Andrew's College | 59.02q |
| 3 | Rory Ferguson | John McGlashan College | 59.17q |
| 4 | Culainn Stringer | Motueka High School | 1:00.69q |
| 5 | Mac Basford | Timaru Boys' High School | 1:02.18 |
| 6 | Caleb Stevenson | Gore High School | 1:04.98 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Daniel Tattley | Riccarton High School | 56.60q |
| 2 | Daniel Watt | Shirley Boys High School | 57.03q |
| 3 | Felix Mcdonald | Kings High School | 57.61q |
| 4 | Tayne Lockwood | Motueka High School | 58.21q |
| 5 | Reuben Watson | Middleton Grange School | 1:01.05 |
| 6 | Jake Southey | Marlborough Boys College | 1:03.09 |
| 7 | Benjamin Mitchell | Timaru Boys' High School | 1:05.68 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Daniel Watt | Shirley Boys High School | 55.09 |
| 2 | Daniel Tattley | Riccarton High School | 55.88 |
| 3 | Matthew McLellan | Waitaki Boys' High School | 56.42 |
| 4 | Felix Mcdonald | Kings High School | 56.77 |
| 5 | Ben Collerton | St Andrew's College | 57.39 |
| 6 | Tayne Lockwood | Motueka High School | 58.27 |
| 7 | Rory Ferguson | John McGlashan College | 58.92 |
| 8 | Culainn Stringer | Motueka High School | 1:00.07 |