| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Emile Wilmar | Wellington | 52.62q |
| 2 | Henry Boyhan | Auckland | 53.25q |
| 3 | Daniel Monaghan | Manawatu | 54.34q |
| 4 | Sam Kearins | Manawatu | 55.14 |
| 5 | Daniel Henderson | Waikato Bay of Plenty | 55.39 |
| -- | Cam Shelley | Northland | DQ |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Bailey Stewart | Auckland | 51.71q |
| 2 | Fletcher Greaves | Wellington | 51.81q |
| 3 | Josh Ledger | Wellington | 52.21q |
| 4 | Quinn Hartley | Manawatu | 52.64q |
| 5 | Dhruv Raman | Wairarapa | 53.66q |
| 6 | Taylor Wynne | Waikato Bay of Plenty | 55.17 |
| 7 | Aaron Cain | Wanganui | 55.31 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Fletcher Greaves | Wellington | 50.40 |
| 2 | Henry Boyhan | Auckland | 50.62 |
| 3 | Bailey Stewart | Auckland | 51.08 |
| 4 | Josh Ledger | Wellington | 52.42 |
| 5 | Quinn Hartley | Manawatu | 52.74 |
| 6 | Emile Wilmar | Wellington | 52.83 |
| 7 | Dhruv Raman | Wairarapa | 54.20 |
| 8 | Daniel Monaghan | Manawatu | 56.18 |