| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Tegan Duffy | Villa Maria College | 46.02q |
| 2 | Lili Szabo | Wellington Girls College | 47.65q |
| 3 | Olivia Allan | St Margaret's College | 47.83 |
| 4 | Ellie Duncan | Columba College | 48.78 |
| 5 | Shavaun Wenzlick | Marist College | 49.23 |
| 6 | Maddie Robinson | Upper Hutt College | 49.32 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Summer Rutherford | Middleton Grange School | 46.51q |
| 2 | Ruby Hansen | Woodford House | 46.68q |
| 3 | Georgia Whiteman | Palmerston North Girls High Sc | 48.19 |
| 4 | Shannon Inch | Columba College | 53.49 |
| -- | Jessica Strick | St Peter's School Camb | DQ |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Alessandra Macdonald | Fairfield College | 46.93q |
| 2 | Elizabeth Hampton | Craighead Diocesan School | 46.96q |
| 3 | Joccoaa Palmer | St Hilda's Collegiate | 46.97q |
| 4 | Jenna Thorne | Otago Girls High School | 47.05q |
| 5 | Hayley Marx | Pukekohe High School | 48.58 |
| 6 | Tara Keenan | St Margaret's College | 49.57 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Tegan Duffy | Villa Maria College | 45.35 |
| 2 | Ruby Hansen | Woodford House | 45.75 |
| 3 | Alessandra Macdonald | Fairfield College | 46.42 |
| 4 | Summer Rutherford | Middleton Grange School | 46.90 |
| 5 | Elizabeth Hampton | Craighead Diocesan School | 47.12 |
| 6 | Joccoaa Palmer | St Hilda's Collegiate | 47.22 |
| 7 | Jenna Thorne | Otago Girls High School | 47.40 |
| 8 | Lili Szabo | Wellington Girls College | 47.59 |