| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Nivana Johnson | Massey High School | 47.94 |
| 2 | Grace Fusitua | Kelston Girls High School | 49.13 |
| 3 | Jaya Sharma | St Cuthbert's College | 49.19 |
| 4 | Apii Nicholls | Otahuhu College | 49.96 |
| 5 | Caitlan Tuala | Auckland Girls Grammar School | 50.04 |
| 6 | Allie Rout | St Kentigern College | 55.01 |
| -- | Sheridan Jackson | Green Bay High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Portia Bing | Baradene College | 43.75 |
| 2 | Alex Hunt | St Kentigern College | 46.37 |
| 3 | Alisha Loverich | Baradene College | 46.85 |
| 4 | Storm Purvis | Diocesan School for Girls | 47.88 |
| 5 | Frankie Adams | Auckland Girls Grammar School | 49.45 |
| 6 | Isabelle Graham | Massey High School | 50.31 |
| 7 | Imoasina Niuula | Green Bay High School | 52.28 |
| 8 | Elise Nother | Sunderland College | 57.57 |