| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Meg Edwards | Rangi Ruru Girls' School | 47.40q |
| 2 | Molly McManus | Waimea College | 48.16q |
| 3 | Lucy Angland | Napier Girls High School | 48.79q |
| 4 | Zarah Rattray | Hamilton Girls High School | 49.12q |
| 5 | Tayler Trow | Palmerston North Girls High Sc | 49.18q |
| 6 | Amelie Wood | Taupo Nui-a-tia College | 51.76 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Holly Fausett | Aquinas College | 47.79q |
| 2 | Nyla Spencer | Rangitoto College | 47.95q |
| 3 | Ruby Simon | Christchurch Girls High School | 49.61q |
| 4 | Ruby Matthews | St Matthew's Collegiate | 49.67 |
| 5 | Zara McDonnell | Rangi Ruru Girls' School | 51.41 |
| 6 | Hannah Paine | St Peter's School | 59.09 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Holly Fausett | Aquinas College | 45.67 |
| 2 | Meg Edwards | Rangi Ruru Girls' School | 46.27 |
| 3 | Nyla Spencer | Rangitoto College | 47.23 |
| 4 | Molly McManus | Waimea College | 48.12 |
| 5 | Lucy Angland | Napier Girls High School | 48.45 |
| 6 | Zarah Rattray | Hamilton Girls High School | 48.55 |
| 7 | Tayler Trow | Palmerston North Girls High Sc | 48.61 |
| 8 | Ruby Simon | Christchurch Girls High School | 49.30 |