| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Harrison Laing | Christ's College | 53.17 |
| 2 | Zack Walton | Christchurch Boys High School | 54.10 |
| 3 | William Berkers | James Hargest College | 54.83 |
| 4 | Flynn Stuart | Cromwell College | 56.40 |
| 5 | Zavier Toaolamai-Holden | Christchurch Boys High School | 56.79 |
| 6 | William Gifford | Christ's College | 56.98 |