| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Kimberley Walsh | St Peters College | 1:00.27q |
| 2 | Nikkita McIntyre | St Andrew's College | 1:03.34q |
| 3 | Jayde Parsons | Auckland Girls' Grammar School | 1:03.77q |
| 4 | Lara Smith | Wellington Girls' College | 1:05.25 |
| 5 | Faith Courtney | Columba College | 1:05.80 |
| 6 | Madeline Thomas | Craighead Diocesan School | 1:09.06 |
| 7 | Ella Hou | Otago Girls High School | 1:10.46 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Monique Gorrie | Palmerston North Girls High Sc | 1:00.32q |
| 2 | Katelyn Sceats | Wellington Girls' College | 1:01.25q |
| 3 | Charlotte Mercer | Villa Maria College | 1:01.44q |
| 4 | Josephine Tappenden | Nayland College | 1:01.65q |
| 5 | Zoe Oliver | Waikato Diocesan School | 1:02.60q |
| 6 | Anneliese Parsons | Macleans College | 1:02.79q |
| 7 | Mia Donaldson | Craighead Diocesan School | 1:10.67 |
| 8 | Anna Knight | Te Aroha College | 1:14.11 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Amelie Fairclough | Western Springs College | 1:00.43q |
| 2 | Gabrielle Healy | Wellington Girls' College | 1:03.09q |
| 3 | Sienna Stowers-Smith | St Andrew's College | 1:03.09q |
| 4 | Rejoice Nhemachena | Sacred Heart Girls' College (H | 1:03.25q |
| 5 | Amelie Wood | Tauhara College | 1:05.63 |
| 6 | Amber Roebeck | Rosehill College | 1:05.69 |
| 7 | Kayla Reid | Rosehill College | 1:06.26 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Kate Borton | Westlake Girls High School | 1:00.85q |
| 2 | Jayde Rolfe | St Peters College | 1:02.77q |
| 3 | Alex Rees Thomas | St Margaret's College | 1:02.81q |
| 4 | Tori Clarke | Waikato Diocesan School | 1:04.34 |
| 5 | Sophia Urlich | Baradene College | 1:08.44 |
| 6 | Darcie Evans-Tobata | Otago Girls High School | 1:12.79 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Kimberley Walsh | St Peters College | 1:00.02q |
| 2 | Kate Borton | Westlake Girls High School | 1:00.27q |
| 3 | Josephine Tappenden | Nayland College | 1:00.77q |
| 4 | Katelyn Sceats | Wellington Girls' College | 1:01.12q |
| 5 | Charlotte Mercer | Villa Maria College | 1:01.75q |
| 6 | Rejoice Nhemachena | Sacred Heart Girls' College (H | 1:01.98 |
| 7 | Jayde Parsons | Auckland Girls' Grammar School | 1:03.04 |
| 8 | Nikkita McIntyre | St Andrew's College | 1:04.30 |
| Placing | Athlete | Team | Semi Finals |
|---|---|---|---|
| 1 | Monique Gorrie | Palmerston North Girls High Sc | 58.91q |
| 2 | Amelie Fairclough | Western Springs College | 59.79q |
| 3 | Sienna Stowers-Smith | St Andrew's College | 1:01.69q |
| 4 | Alex Rees Thomas | St Margaret's College | 1:02.43 |
| 5 | Jayde Rolfe | St Peters College | 1:03.29 |
| 6 | Anneliese Parsons | Macleans College | 1:03.50 |
| 7 | Gabrielle Healy | Wellington Girls' College | 1:04.01 |
| 8 | Zoe Oliver | Waikato Diocesan School | 1:09.84 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Monique Gorrie | Palmerston North Girls High Sc | 56.69 |
| 2 | Kimberley Walsh | St Peters College | 57.13 |
| 3 | Amelie Fairclough | Western Springs College | 58.05 |
| 4 | Kate Borton | Westlake Girls High School | 59.51 |
| 5 | Josephine Tappenden | Nayland College | 1:00.38 |
| 6 | Sienna Stowers-Smith | St Andrew's College | 1:00.73 |
| 7 | Katelyn Sceats | Wellington Girls' College | 1:01.01 |
| 8 | Charlotte Mercer | Villa Maria College | 1:01.28 |