| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Cameron Hay | Christchurch Boys High School | 24.11q |
| 2 | Jack Fifield | St Andrew's College | 24.94q |
| 3 | Nick Fraser-Young | Hillmorton High School | 24.96q |
| 4 | Thomas McGhee | Nayland College | 25.16q |
| 5 | Kurt Weavers | James Hargest High School | 25.72 |
| 6 | Taine Cropley | Waitaki Boys' High School | 25.93 |
| 7 | Tai Soames | Central Southland College | 26.17 |
| 8 | Blake Patterson | Timaru Boys' High School | 26.41 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Isak Gunnarsson | St Kevin's College | 24.48q |
| 2 | Brandon Gleaves | Middleton Grange School | 24.82q |
| 3 | Matt Mclean | Shirley Boys High School | 25.10q |
| 4 | John Snow | John McGlashan College | 25.23q |
| 5 | Mitchell Chandler | Nayland College | 25.28 |
| 6 | Samuel Keane | Kings High School | 25.50 |
| 7 | Jack O'Halloran | St Andrew's College | 25.68 |
| 8 | Stefan James | Lincoln High School | 26.30 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Cameron Hay | Christchurch Boys High School | 23.78 |
| 2 | Isak Gunnarsson | St Kevin's College | 24.62 |
| 3 | Brandon Gleaves | Middleton Grange School | 24.76 |
| 4 | Nick Fraser-Young | Hillmorton High School | 24.99 |
| 5 | Jack Fifield | St Andrew's College | 24.99 |
| 6 | Thomas McGhee | Nayland College | 25.28 |
| 7 | Matt Mclean | Shirley Boys High School | 25.38 |
| 8 | John Snow | John McGlashan College | 25.41 |