| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Thomas Martin | St Bede's College | 25.38q |
| 2 | Jayden Pike | Papanui High School | 26.81q |
| 3 | Jack Drew | Cashmere High School | 28.31 |
| 4 | Junior Sitagata | St Andrew's College | 28.37 |
| 5 | Lyo Ishizuka | Burnside High School | 28.68 |
| 6 | Connor Doyle | Rangiora High School | 28.75 |
| -- | Shuiab Ahmed | Christchurch Boys High Sc | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Nathan Shaw | Papanui High School | 26.86q |
| 2 | Glenn Smith | Combined Country High Sch | 27.74q |
| 3 | James Jackson | Burnside High School | 27.99q |
| 4 | Josh Ward | Riccarton High School | 28.19 |
| 5 | Ben Masara | Mairehau High School | 29.13 |
| 6 | Sophere Mal | Cashmere High School | 30.50 |
| -- | Morgan Van Schallkwyk | Aranui High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Hayden Winter | St Thomas of Canterbury C | 26.64q |
| 2 | Nathan Wootton | Lincoln High School | 27.10q |
| 3 | Mathew James | St Bede's College | 28.52 |
| 4 | Michael Borthwick | Christ's College | 28.65 |
| 5 | James McCormick | Burnside High School | 29.05 |
| -- | Riki Fraser | Riccarton High School | DNS |
| -- | Daniel Kim | Christchurch Boys High Sc | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | DJ Kilden | Christchurch Boys High Sc | 26.38q |
| 2 | Richard Mounga | Riccarton High School | 28.03 |
| 3 | Ashley Cox | St Andrew's College | 28.05 |
| 4 | Will Angland | Christ's College | 28.50 |
| 5 | Ryan Svensson | Hornby High School | 29.91 |
| 6 | Tom Bates | St Thomas of Canterbury C | 29.93 |
| -- | Malcolm MacLeod | Cashmere High School | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Thomas Martin | St Bede's College | 24.80 |
| 2 | Hayden Winter | St Thomas of Canterbury C | 25.88 |
| 3 | Jayden Pike | Papanui High School | 25.89 |
| 4 | Nathan Shaw | Papanui High School | 26.20 |
| 5 | Nathan Wootton | Lincoln High School | 26.26 |
| 6 | Glenn Smith | Combined Country High Sch | 26.64 |
| 7 | DJ Kilden | Christchurch Boys High Sc | 26.83 |
| 8 | James Jackson | Burnside High School | 27.37 |