| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Georgia Hulls | East Coast North Island | 58.91q |
| 2 | Stella Pearless | North Harbour | 1:00.13q |
| 3 | Annabelle Cadogan | Waikato Bay of Plenty | 1:00.85q |
| 4 | Ruby Hansen | East Coast North Island | 1:01.13q |
| 5 | Alexandria Maples | Wanganui | 1:01.95q |
| 6 | Jade Tulp | Counties Manukau | 1:02.82 |
| 7 | Madison Robinson-Unuia | Wellington | 1:03.38 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Grace Godffrey | Wanganui | 1:00.54q |
| 2 | Charlotte Smaill | Counties Manukau | 1:01.15q |
| 3 | Sophie Twigley | East Coast North Island | 1:01.82q |
| 4 | Tamsin Burt | Taranaki | 1:03.02 |
| 5 | Alex Wansink | North Harbour | 1:03.69 |
| 6 | Alessandra Macdonald | Waikato Bay of Plenty | 1:03.74 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Georgia Hulls | East Coast North Island | 57.34 |
| 2 | Stella Pearless | North Harbour | 59.02 |
| 3 | Charlotte Smaill | Counties Manukau | 59.37 |
| 4 | Sophie Twigley | East Coast North Island | 1:00.58 |
| 5 | Grace Godffrey | Wanganui | 1:00.91 |
| 6 | Annabelle Cadogan | Waikato Bay of Plenty | 1:01.06 |
| 7 | Alexandria Maples | Wanganui | 1:02.01 |
| 8 | Ruby Hansen | East Coast North Island | 1:02.24 |