| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Geoffrey Scott | Shirley Boys High School | 57.30q |
| 2 | Matthew van der Clay | St Thomas of Canterbury C | 59.73q |
| 3 | Xavier McLean | Rudolf Steiner School | 1:08.95 |
| -- | Bradley Lake | St Bede's College | DNS |
| -- | Jack Morrison | Christchurch Boys High Sc | DNS |
| -- | Shaun Ryan-Morris | Aranui High School | DNS |
| -- | Uddaka Wijesinghe | Christ's College | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Ben Evans | St Bede's College | 55.02q |
| 2 | Jordan Anderson | Shirley Boys High School | 56.99q |
| 3 | Axel Bjerke | Combined Country High Sch | 59.33q |
| 4 | Amanaki Nicole | Burnside High School | 1:00.18 |
| 5 | Hayden Mckay | Cathedral College | 1:08.30 |
| -- | Tawhiri Mikaere | Unlimited Paenga Tawhiti | DNS |
| -- | Eddy Van Der Pol | Christchurch Boys High Sc | DQ |
| -- | Sam Ward | St Andrew's College | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Martin Swart | Christchurch Boys High Sc | 55.90q |
| 2 | Michael Jones | St Bede's College | 56.48q |
| 3 | Ryan Alexander | Christ's College | 56.58q |
| 4 | Junior Gamble | Combined Country High Sch | 59.76 |
| 5 | Jade Johnson | Shirley Boys High School | 1:02.22 |
| 6 | Matt Price | Kaiapoi High School | 1:02.91 |
| -- | Michael Sellwood | Darfield High School | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Ryan Alexander | Christ's College | 52.67 |
| 2 | Ben Evans | St Bede's College | 53.80 |
| 3 | Martin Swart | Christchurch Boys High Sc | 54.68 |
| 4 | Geoffrey Scott | Shirley Boys High School | 55.39 |
| 5 | Jordan Anderson | Shirley Boys High School | 55.59 |
| 6 | Michael Jones | St Bede's College | 58.37 |
| 7 | Matthew van der Clay | St Thomas of Canterbury C | 58.85 |
| -- | Axel Bjerke | Combined Country High Sch | DNS |