| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Jessica Hamilton | James Hargest High School | 1:11.09q |
| 2 | Maddy McKinlay | Otago Girls High School | 1:12.26q |
| 3 | Fran Mayer-Baird | Otago Girls High School | 1:15.72q |
| 4 | Tracey Barclay | South Otago | 1:23.34 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Abigail Irving | St Hilda's | 1:10.09q |
| 2 | Karen Stringer | Northern Southland College | 1:10.56q |
| 3 | Breanna McNeill | Wakatipu High School | 1:10.73q |
| 4 | Brittany Wallis | St Kevin's College | 1:11.73q |
| 5 | Brianna O'Connell | KAVANAGH | 1:17.83q |
| 6 | Olivia Hay | St Hilda's | 1:22.72 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Maddy McKinlay | Otago Girls High School | 1:04.07 |
| 2 | Breanna McNeill | Wakatipu High School | 1:07.92 |
| 3 | Jessica Hamilton | James Hargest High School | 1:08.45 |
| 4 | Brittany Wallis | St Kevin's College | 1:08.57 |
| 5 | Karen Stringer | Northern Southland College | 1:10.02 |
| 6 | Fran Mayer-Baird | Otago Girls High School | 1:10.63 |
| 7 | Abigail Irving | St Hilda's | 1:10.67 |
| 8 | Brianna O'Connell | KAVANAGH | 1:15.98 |