| Placing | Team | Preliminaries |
|---|---|---|
| 1 | Christchurch Boys High Sc - A |
50.40q |
| 2 | St Andrew's College - A |
51.35q |
| 3 | Christ's College - A |
52.18q |
| 4 | Burnside High School - A |
52.46q |
| 5 | Papanui High School - A |
53.17q |
| 6 | Riccarton High School - A |
53.42 |
| 7 | Kaiapoi High School - A |
1:00.15 |
| Placing | Team | Preliminaries |
|---|---|---|
| 1 | Linwood College - A |
50.74q |
| 2 | Shirley Boys High School - A |
53.33q |
| 3 | St Bede's College - A |
53.41q |
| 4 | Cashmere High School - A |
53.74 |
| 5 | Hornby High School - A |
54.57 |
| 6 | St Thomas of Canterbury C - A |
54.59 |
| 7 | Rangiora High School - A |
54.65 |
| 8 | Ellesmere College - A |
56.57 |
| Placing | Team | Finals |
|---|---|---|
| 1 | Christchurch Boys High Sc - A |
49.70 |
| 2 | Linwood College - A |
50.62 |
| 3 | St Bede's College - A |
51.00 |
| 4 | St Andrew's College - A |
51.60 |
| 5 | Burnside High School - A |
52.40 |
| 6 | Christ's College - A |
53.24 |
| 7 | Shirley Boys High School - A |
53.32 |
| -- | Papanui High School - A |
DNS |