| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Claire Erasmus | Nelson College For Girls | 1:03.99q |
| 2 | Lucy Thomson | St Margaret's College | 1:04.27q |
| 3 | Hannah Clare | Central Southland College | 1:04.32q |
| 4 | Sarah Allan | Southland Girls' High School | 1:04.42 |
| 5 | Sydney Evans Tobata | Otago Girls High School | 1:05.72 |
| 6 | Laura Dorgan | Roncalli College | 1:06.04 |
| 7 | Kelly Clifford | Craighead Diocesan School | 1:11.07 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Brigid O Neill | Otago Girls High School | 1:02.30q |
| 2 | Kate Meynell | Riccarton High School | 1:02.58q |
| 3 | Maddie Spence | Rangi Ruru Girls' School | 1:03.00q |
| 4 | Chelsea Brown | Rangiora High School | 1:03.34q |
| 5 | Jemima Tennekoom | St Margaret's College | 1:03.94q |
| 6 | Kelly Marshall | Avonside Girls' High School | 1:05.10 |
| 7 | Amber Brooks | Waimea College | 1:07.08 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Maddie Spence | Rangi Ruru Girls' School | 1:01.16 |
| 2 | Jemima Tennekoom | St Margaret's College | 1:01.68 |
| 3 | Claire Erasmus | Nelson College For Girls | 1:02.95 |
| 4 | Kate Meynell | Riccarton High School | 1:03.51 |
| 5 | Hannah Clare | Central Southland College | 1:03.62 |
| 6 | Chelsea Brown | Rangiora High School | 1:03.68 |
| 7 | Brigid O Neill | Otago Girls High School | 1:05.50 |
| 8 | Lucy Thomson | St Margaret's College | 1:06.75 |