| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Hannah Adamson | Southland Girls' High School | 1:09.12q |
| 2 | DANIELLE DeCAIGNEY | Queens | 1:09.67q |
| 3 | Natalie Hill | St Hilda's | 1:15.56q |
| 4 | Olivia Waldron | St Hilda's | 1:17.16q |
| -- | Lisa Nolan | St Kevin's College | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Sian English | Columba College | 1:10.36q |
| 2 | Katie Mulholland | Columba College | 1:11.03q |
| 3 | Melissa Hall | Central Southland College | 1:14.18q |
| 4 | Rebecca Axtens | Central Southland College | 1:16.08q |
| 5 | Sarah Reid | James Hargest High School | 1:19.99 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Hannah Adamson | Southland Girls' High School | 1:06.20 |
| 2 | DANIELLE DeCAIGNEY | Queens | 1:07.40 |
| 3 | Sian English | Columba College | 1:08.90 |
| 4 | Katie Mulholland | Columba College | 1:10.30 |
| 5 | Natalie Hill | St Hilda's | 1:14.70 |
| 6 | Melissa Hall | Central Southland College | 1:15.10 |
| 7 | Olivia Waldron | St Hilda's | 1:15.50 |
| 8 | Rebecca Axtens | Central Southland College | 1:16.40 |