| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Abbe Watson | Middleton Grange School | 1:01.94q |
| 2 | Biddy Skerten | Columba College | 1:02.95q |
| 3 | Emily McFarlane | Craighead Diocesan School | 1:03.78q |
| 4 | Yolanda Ray | Bayfield High School | 1:07.31q |
| -- | Laura Edwards | South Otago High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Sheree Hume | St Hilda's Collegiate | 1:09.37q |
| 2 | Kayla Frew | Ashburton College | 1:10.46q |
| 3 | Jemma McWilliam | Ashburton College | 1:11.20q |
| 4 | Brittany Marquet | Avonside Girls' High School | 1:12.18q |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Abbe Watson | Middleton Grange School | 1:01.20 |
| 2 | Sheree Hume | St Hilda's Collegiate | 1:04.30 |
| 3 | Emily McFarlane | Craighead Diocesan School | 1:05.00 |
| 4 | Kayla Frew | Ashburton College | 1:05.80 |
| 5 | Yolanda Ray | Bayfield High School | 1:06.70 |
| 6 | Jemma McWilliam | Ashburton College | 1:08.00 |
| 7 | Brittany Marquet | Avonside Girls' High School | 1:10.50 |
| -- | Biddy Skerten | Columba College | DNS |