| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Hazel Bowering-Scott | Nelson College For Girls | 1:00.10q |
| 2 | Molly Lyons | Villa Maria College | 1:04.26q |
| 3 | Lyndsey Gould | Nayland College | 1:05.74q |
| 4 | Jessica Hamilton | James Hargest High School | 1:07.00 |
| 5 | Lauren Nicol | Roncalli College | 1:07.30 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Maddy McKinlay | Otago Girls High School | 1:03.12q |
| 2 | Jessica Garlick | Villa Maria College | 1:03.44q |
| 3 | Alice Sharples | Rangi Ruru Girls' School | 1:04.34q |
| 4 | Karen Stringer | Northern Southland College | 1:05.23q |
| 5 | Annie Gilchrist | Mackenzie College | 1:06.32q |
| 6 | Shay Robinson | Burnside High School | 1:08.19 |
| 7 | Breanna McNeill | Wakatipu High School | 1:10.67 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Hazel Bowering-Scott | Nelson College For Girls | 59.45 |
| 2 | Maddy McKinlay | Otago Girls High School | 1:01.13 |
| 3 | Alice Sharples | Rangi Ruru Girls' School | 1:01.72 |
| 4 | Jessica Garlick | Villa Maria College | 1:02.31 |
| 5 | Molly Lyons | Villa Maria College | 1:04.92 |
| 6 | Karen Stringer | Northern Southland College | 1:06.40 |
| 7 | Annie Gilchrist | Mackenzie College | 1:06.53 |
| 8 | Lyndsey Gould | Nayland College | 1:06.59 |