| Placing | Team | Preliminaries |
|---|---|---|
| -- | Burnside High School - A |
q |
| -- | Christ's College - A |
q |
| -- | Geraldine High School - A |
q |
| -- | Otago Boys High School - A |
q |
| -- | Shirley Boys High School - A |
q |
| -- | St Kevin's College - A |
q |
| -- | Timaru Boys' High School - A |
q |
| Placing | Team | Finals |
|---|---|---|
| 1 | Shirley Boys High School - A |
49.40 |
| 2 | Timaru Boys' High School - A |
49.77 |
| 3 | Otago Boys High School - A |
50.56 |
| 4 | Burnside High School - A |
51.05 |
| 5 | St Kevin's College - A |
52.38 |
| 6 | Geraldine High School - A |
52.50 |
| -- | Christ's College - A |
DQ |