| Placing | Team | Preliminaries |
|---|---|---|
| 1 | Ellesmere College - A |
54.38q |
| 2 | Hornby High School - A |
1:00.25q |
| -- | Christchurch Boys High Sc - A |
DQ |
| -- | Rangiora High School - A |
DNS |
| -- | St Andrew's College - A |
DQ |
| Placing | Team | Preliminaries |
|---|---|---|
| 1 | Christ's College - A |
52.02q |
| 2 | Cashmere High School - A |
52.24q |
| 3 | Shirley Boys High School - A |
52.76q |
| 4 | St Bede's College - A |
54.23q |
| -- | Burnside High School - A |
DQ |
| -- | St Thomas of Canterbury C - A |
DQ |
| Placing | Team | Finals |
|---|---|---|
| 1 | Shirley Boys High School - A |
50.99 |
| 2 | Christ's College - A |
52.14 |
| 3 | Ellesmere College - A |
53.41 |
| 4 | St Bede's College - A |
54.97 |
| -- | Cashmere High School - A |
DQ |
| -- | Hornby High School - A |
DQ |