| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Alice Sharples | Rangi Ruru Girls School | 1:02.02q |
| 2 | Florence Loader | Rangiora High School | 1:04.11q |
| 3 | Jessica Garlick | Villa Maria College | 1:06.01q |
| 4 | Brittany Marquet | Avonside Girls High Schoo | 1:07.97q |
| 5 | Nicolasa Fuller | Christchurch Girls High S | 1:08.72q |
| 6 | Nicole Harding | Christchurch Girls High S | 1:13.95q |
| -- | Jessica Arthur | St Margaret's College | DNSq |
| -- | Emma Silva | St Margaret's College | DNSq |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Alice Sharples | Rangi Ruru Girls School | 1:02.02 |
| 2 | Florence Loader | Rangiora High School | 1:04.11 |
| 3 | Jessica Garlick | Villa Maria College | 1:06.01 |
| 4 | Brittany Marquet | Avonside Girls High Schoo | 1:07.97 |
| 5 | Nicolasa Fuller | Christchurch Girls High S | 1:08.72 |
| 6 | Nicole Harding | Christchurch Girls High S | 1:13.95 |
| -- | Jessica Arthur | St Margaret's College | DNS |
| -- | Emma Silva | St Margaret's College | DNS |