| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Connor Tyndall | Cashmere High School | 58.64q |
| 2 | Mark Burnett | Kings High School | 59.21q |
| 3 | Sam Johnstone | Ashburton College | 59.22q |
| 4 | Nick Mckenzie | Nelson College | 1:01.98q |
| 5 | Simon Van Dam | Tuatapere Community College | 1:03.11 |
| -- | Dale Smith | St Thomas Of Canterbury Colleg | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Thomas Martin | St Bede's College | 57.81q |
| 2 | Blair Grant | Waitaki Boys' High School | 58.98q |
| 3 | Todd Houston | Mt Hutt College | 59.32q |
| 4 | Joe Kelso | Gore High School | 59.78q |
| -- | Levi Rye | St Kevin's College | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Thomas Martin | St Bede's College | 54.32 |
| 2 | Blair Grant | Waitaki Boys' High School | 54.83 |
| 3 | Todd Houston | Mt Hutt College | 56.33 |
| 4 | Connor Tyndall | Cashmere High School | 57.26 |
| 5 | Joe Kelso | Gore High School | 58.24 |
| 6 | Mark Burnett | Kings High School | 59.07 |
| 7 | Nick Mckenzie | Nelson College | 59.52 |
| 8 | Sam Johnstone | Ashburton College | 59.62 |