| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| -- | Katherine Millar | St Andrew's College | q |
| -- | Sarah Robb | Christchurch Girls High S | q |
| -- | Abbe Watson | Middleton Grange | q |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| -- | Kathryn Allan | St Andrew's College | q |
| -- | Elise Foreman | Marian College | q |
| -- | Georgia Leggat | Rangi Ruru Girls School | q |
| -- | Devon Smith | Mairehau High School | q |
| -- | Emily Spink | Burnside High School | q |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Abbe Watson | Middleton Grange | 57.88 |
| 2 | Sarah Robb | Christchurch Girls High S | 1:02.59 |
| 3 | Emily Spink | Burnside High School | 1:04.17 |
| 4 | Elise Foreman | Marian College | 1:07.20 |
| 5 | Devon Smith | Mairehau High School | 1:08.48 |
| 6 | Katherine Millar | St Andrew's College | 1:08.77 |
| 7 | Georgia Leggat | Rangi Ruru Girls School | 1:09.65 |
| 8 | Kathryn Allan | St Andrew's College | 1:12.99 |