| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| -- | Matt Bowie | Lincoln High School | q |
| -- | Paul Lysaght | Christ's College | q |
| -- | Josiah Young | Burnside High School | q |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| -- | John Lim | St Bede's College | q |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Tim Norriss | Cashmere High School | 17.77 |
| 2 | Josiah Young | Burnside High School | 18.90 |
| 3 | John Lim | St Bede's College | 19.30 |
| 4 | Matt Bowie | Lincoln High School | 19.73 |
| 5 | Paul Lysaght | Christ's College | 20.27 |
| -- | Ted Tanchak | Cashmere High School | DNS |