| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Phoebe Laker | Mt Aspiring College | 1:02.63q |
| 2 | Pera Gordon | Cashmere High School | 1:05.16q |
| 3 | Allesandra Jowsey | Villa Maria College | 1:06.49q |
| 4 | Courtney White | St Peter's College (Gore) | 1:09.82q |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Holly Donohoe | Christchurch Girls High School | 1:03.93q |
| 2 | Tilly O'Sullivan | Rangi Ruru Girls' School | 1:04.41q |
| 3 | Ruby Mahuika | Craighead Diocesan School | 1:05.06q |
| 4 | Sadye Kawau | Columba College | 1:06.61q |
| -- | Izzy McLeod | Christchurch Girls High School | DQ |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Phoebe Laker | Mt Aspiring College | 59.59 |
| 2 | Holly Donohoe | Christchurch Girls High School | 1:02.79 |
| 3 | Ruby Mahuika | Craighead Diocesan School | 1:03.01 |
| 4 | Tilly O'Sullivan | Rangi Ruru Girls' School | 1:04.04 |
| 5 | Pera Gordon | Cashmere High School | 1:05.90 |
| 6 | Sadye Kawau | Columba College | 1:07.21 |
| 7 | Allesandra Jowsey | Villa Maria College | 1:07.78 |
| -- | Courtney White | St Peter's College (Gore) | DNS |