| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Alice Sharples | Rangi Ruru Girls School | 1:05.75q |
| 2 | Hannah Wong | Marian College | 1:07.50q |
| 3 | Molly Lyons | Villa Maria College | 1:07.82q |
| 4 | Lucy Brownlee | St Andrew's College | 1:15.53q |
| 5 | Rachael Gibson | Hornby High School | 1:17.66 |
| -- | Jess Lock | Kaiapoi High School | DNS |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Jessica Garlick | Villa Maria College | 1:05.99q |
| 2 | Nicolasa Fuller | Christchurch Girls High S | 1:09.53q |
| 3 | Alexis Cartwright | Lincoln High School | 1:11.96q |
| 4 | Julia Spiers | Rangi Ruru Girls School | 1:13.39q |
| 5 | Emily Gualter | St Andrew's College | 1:16.16 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Alice Sharples | Rangi Ruru Girls School | 1:01.78 |
| 2 | Jessica Garlick | Villa Maria College | 1:02.83 |
| 3 | Molly Lyons | Villa Maria College | 1:06.22 |
| 4 | Nicolasa Fuller | Christchurch Girls High S | 1:06.22 |
| 5 | Hannah Wong | Marian College | 1:07.35 |
| 6 | Alexis Cartwright | Lincoln High School | 1:09.59 |
| 7 | Julia Spiers | Rangi Ruru Girls School | 1:11.59 |
| -- | Lucy Brownlee | St Andrew's College | DNS |