| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Michael Peterson | James Hargest High School | 25.88q |
| 2 | Dylan Lovett | James Hargest High School | 26.20q |
| 3 | Sam O'Callaghan | Central Southland College | 26.66q |
| 4 | Regan Bennett | Tuatapere Community College | 27.92q |
| 5 | Zac Simonsen | Gore High School | 28.61 |
| 6 | Jarrod Kean | Central Southland College | 29.06 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Joseph Kelso | Gore High School | 25.61q |
| 2 | Tamati Wilson | Central Southland College | 26.87q |
| 3 | Angus Garrity | St Peter's College (Gore) | 27.06q |
| 4 | Harley Harris McRae | Aparima College | 27.81q |
| 5 | Sean Woods | Aurora College | 28.79 |
| -- | Ethan Campbell | James Hargest High School | DNS |
| -- | Robert Peseta | Southland Boys High School | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Joseph Kelso | Gore High School | 25.93 |
| 2 | Dylan Lovett | James Hargest High School | 26.27 |
| 3 | Michael Peterson | James Hargest High School | 26.58 |
| 4 | Tamati Wilson | Central Southland College | 27.23 |
| 5 | Sam O'Callaghan | Central Southland College | 27.24 |
| 6 | Regan Bennett | Tuatapere Community College | 27.73 |
| 7 | Harley Harris McRae | Aparima College | 28.63 |
| 8 | Angus Garrity | St Peter's College (Gore) | 29.63 |