| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Stacey Hildreth | Christchurch Girls High School | 1:06.44q |
| 2 | Tessa Sutton | Kavanagh College | 1:07.18q |
| 3 | Aleia Wiggins | Marian College | 1:07.71q |
| 4 | Rosemary Alderton | Blue Mountain College | 1:13.53 |
| -- | Hannah Adamson | Southland Girls' High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Laura Goebel | Lincoln High School | 1:05.77q |
| 2 | Anna Kean | Bayfield High School | 1:06.15q |
| 3 | Philipa Trevalla | Rangi Ruru Girls' School | 1:06.74q |
| 4 | Kirsty O'Connor | Gore High School | 1:07.41q |
| 5 | Molly Lyons | Villa Maria College | 1:08.46q |
| 6 | Alice Baird | Mackenzie College | 1:09.98 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Anna Kean | Bayfield High School | 1:01.14 |
| 2 | Tessa Sutton | Kavanagh College | 1:02.29 |
| 3 | Stacey Hildreth | Christchurch Girls High School | 1:02.93 |
| 4 | Laura Goebel | Lincoln High School | 1:03.71 |
| 5 | Aleia Wiggins | Marian College | 1:04.94 |
| 6 | Philipa Trevalla | Rangi Ruru Girls' School | 1:05.12 |
| 7 | Kirsty O'Connor | Gore High School | 1:06.92 |
| -- | Molly Lyons | Villa Maria College | DNS |