| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | William Lentjes | Christchurch Boys High Sc | 23.45q |
| 2 | Sam Jamieson | St Andrew's College | 23.87q |
| 3 | Jonathon Lester | St Thomas of Canterbury C | 25.39 |
| 4 | Craig Varcoe | St Andrew's College | 26.02 |
| 5 | Sonny Karena | Hornby High School | 27.47 |
| -- | Mark Atkins | Cashmere High School | DNS |
| -- | Misionara Salave | St Thomas of Canterbury C | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Malcolm Creelman | Christchurch Boys High Sc | 23.78q |
| 2 | Scott Walker | Christchurch Boys High Sc | 23.86q |
| 3 | Ryan Alexander | Christ's College | 24.21q |
| 4 | Zac Lilley | St Bede's College | 24.54q |
| 5 | Hugh Macleod | Christ's College | 24.77 |
| 6 | Billy Harrington | Combined Country High Sch | 26.17 |
| 7 | Ian Gordon | Burnside High School | 32.66 |
| -- | Brydon Fonotia | Shirley Boys High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Sean Van Der Busse | Shirley Boys High School | 24.06q |
| 2 | Conan Moynihan | St Bede's College | 24.49q |
| 3 | James Schrader | St Bede's College | 24.83 |
| 4 | Michael Sellwood | Darfield High School | 25.11 |
| 5 | Lewis Allan | St Thomas of Canterbury C | 25.36 |
| -- | Michael McDonald | Mairehau High School | DNS |
| -- | Adam Rate | Mairehau High School | DNS |
| -- | Jarryd Walker | Hillmorton High School | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Scott Walker | Christchurch Boys High Sc | 22.92 |
| 2 | William Lentjes | Christchurch Boys High Sc | 23.24 |
| 3 | Sam Jamieson | St Andrew's College | 23.46 |
| 4 | Malcolm Creelman | Christchurch Boys High Sc | 23.59 |
| 5 | Sean Van Der Busse | Shirley Boys High School | 23.71 |
| 6 | Conan Moynihan | St Bede's College | 23.76 |
| 7 | Ryan Alexander | Christ's College | 23.93 |
| 8 | Zac Lilley | St Bede's College | 24.46 |