| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Zoe Taylor | Rutherford College | 47.29q |
| 2 | Petra Clarkson | Wellington East Girls' College | 48.52q |
| 3 | Sophie Redmayne | Wanganui Collegiate | 48.68q |
| 4 | Jorien Fourie | Epsom Girls Grammar School | 49.85q |
| 5 | Francesca Williamson | St Margaret's College | 51.37 |
| 6 | Brianna Fidow | Villa Maria College | 51.46 |
| 7 | Georgia Matson | Wanganui Collegiate | 51.90 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Olivia Burnham | Villa Maria College | 44.77q |
| 2 | Kayla Goodwin | Sacred Heart Girls College Ham | 47.43q |
| 3 | Isabel Brabyn | Wanganui Collegiate | 48.96q |
| 4 | Katie Corbett | Te Kuiti High School | 49.23q |
| 5 | Dana Phelan | New Plymouth Girls High School | 51.39 |
| 6 | Ellie Hurley-Langton | Hawera High School | 51.91 |
| 7 | Eliana Slaney | Cambridge High School | 58.41 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Olivia Burnham | Villa Maria College | 44.48 |
| 2 | Kayla Goodwin | Sacred Heart Girls College Ham | 46.59 |
| 3 | Zoe Taylor | Rutherford College | 47.17 |
| 4 | Katie Corbett | Te Kuiti High School | 47.99 |
| 5 | Isabel Brabyn | Wanganui Collegiate | 48.40 |
| 6 | Jorien Fourie | Epsom Girls Grammar School | 48.47 |
| 7 | Petra Clarkson | Wellington East Girls' College | 48.57 |
| 8 | Sophie Redmayne | Wanganui Collegiate | 48.72 |