| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| -- | Hannah Adams | Mackenzie College | q |
| -- | Nydia Castle | Craighead Diocesan School | q |
| -- | Laura Gray | St Hilda's Collegiate | q |
| -- | Nikita Hall | Waitaki Girls' High Schoo | q |
| -- | Amy McKay | Christchurch Girls High S | q |
| -- | Jayne Milburn | Otago Girls High School | q |
| -- | Lucy Oliver | Villa Maria College | q |
| -- | Leeza van der Salm | St Kevin's College | q |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Jayne Milburn | Otago Girls High School | 59.34 |
| 2 | Amy McKay | Christchurch Girls High S | 59.35 |
| 3 | Laura Gray | St Hilda's Collegiate | 1:04.40 |
| 4 | Lucy Oliver | Villa Maria College | 1:04.75 |
| 5 | Hannah Adams | Mackenzie College | 1:06.16 |
| 6 | Nikita Hall | Waitaki Girls' High Schoo | 1:08.17 |
| 7 | Nydia Castle | Craighead Diocesan School | 1:08.70 |
| 8 | Leeza van der Salm | St Kevin's College | 1:10.27 |