| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Emily McCormick | Burnside High School | 1:05.71q |
| 2 | Sarah Aitkin | Columba College | 1:06.27q |
| 3 | Nicole Batchelor | Waimate High School | 1:06.44q |
| 4 | Timiny Schultze | Villa Maria College | 1:07.71q |
| 5 | N McMath | James Hargest High School | 1:09.43 |
| 6 | L Kennedy | St Kevin's College | 1:10.26 |
| 7 | Sophie Patchett | Marlborough Girls College | 1:10.74 |
| -- | B Welsh | Central Southland College | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Sophie Tapper | Rangi Ruru Girls School | 1:04.62q |
| 1 | Jordona Walker | Burnside High School | 1:04.62q |
| 3 | Renee Clarke | Nayland College | 1:06.52q |
| 4 | Ashleigh Kersten | John Paul II High School | 1:09.30q |
| 5 | Alison Hetherington | Timaru Girls' High School | 1:09.65 |
| 6 | Danielle Lippit | Cashmere High School | 1:10.01 |
| -- | K Coghlan | St Peter's College (Gore) | DNS |
| -- | Tyla Nelson | Waimea College | DNS |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Nicole Batchelor | Waimate High School | 1:03.02 |
| 2 | Sophie Tapper | Rangi Ruru Girls School | 1:03.33 |
| 3 | Jordona Walker | Burnside High School | 1:04.36 |
| 4 | Sarah Aitkin | Columba College | 1:05.21 |
| 5 | Emily McCormick | Burnside High School | 1:05.38 |
| 6 | Renee Clarke | Nayland College | 1:08.01 |
| 7 | Timiny Schultze | Villa Maria College | 1:09.78 |
| 8 | Ashleigh Kersten | John Paul II High School | 1:11.77 |