| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Craig Smith | Christchurch Boys High Sc | 57.45q |
| 2 | James Schrader | St Bede's College | 59.83q |
| 3 | Josh Soper | Ellesmere College | 1:00.22 |
| 4 | Eugene McKinstry | Rangiora High School | 1:00.41 |
| 5 | Matthew van der Clay | St Thomas of Canterbury C | 1:01.91 |
| -- | Daniel Hodges | Shirley Boys High School | DNS |
| -- | Michael McDonald | Mairehau High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Tim Smith | St Bede's College | 57.17q |
| 2 | Damon Woolf | St Andrew's College | 1:00.54 |
| -- | Bradley Baxter | Lincoln High School | DNS |
| -- | Michael Keppel | Shirley Boys High School | DNS |
| -- | Matt Waaka | Papanui High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Joel Armstrong | Middleton Grange | 54.71q |
| 2 | Darragh Kenny | St Bede's College | 56.14q |
| 3 | Hamish O'Connell | Christchurch Boys High Sc | 57.66q |
| 4 | Kale Bradshaw | St Thomas of Canterbury C | 58.82q |
| 5 | Matt Cox | St Andrew's College | 59.14q |
| 6 | Sam Smith | Lincoln High School | 1:05.30 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Joel Armstrong | Middleton Grange | 52.86 |
| 2 | Darragh Kenny | St Bede's College | 55.01 |
| 3 | Hamish O'Connell | Christchurch Boys High Sc | 55.54 |
| 4 | Craig Smith | Christchurch Boys High Sc | 55.91 |
| 5 | Tim Smith | St Bede's College | 57.76 |
| 6 | James Schrader | St Bede's College | 58.99 |
| 7 | Kale Bradshaw | St Thomas of Canterbury C | 59.92 |
| -- | Matt Cox | St Andrew's College | DNS |