| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Stacey Dennison | Dunstan | 1:07.00 |
| 2 | Anna Cross | Otago Girls High School | 1:08.80 |
| 3 | Shanna Verhoef | Bayfield | 1:10.00 |
| 4 | Meg McKay | St Hilda's | 1:10.20 |
| 5 | Rhiannon Mahon | Southland Girls' High School | 1:10.70 |
| 6 | Nicole Dowling | St Kevin's College | 1:16.70 |
| 7 | Rianna Mitchell | Otago Girls High School | 1:21.00 |
| -- | Melissa Hamilton | Central Southland College | DNS |