Records
8 Advance: Top 3 Each Heat plus Next 2 Best Times
| Place | Name | Age | Team | Prelims | H. |
|---|---|---|---|---|---|
| 1 | 40723 Mia De Ruyter | Shoalhaven | 16.49Q | 2 | |
| 2 | 33905 Ava Houlison | Kiama | 17.62Q | 1 | |
| 3 | 1536 Myla Carraro | Nowra | 16.51Q | 2 | |
| 4 | 34771 Banksii Spencer | Lake Illawarra | 18.08Q | 1 | |
| 5 | 34881 Peyton Sartori | Lake Illawarra | 17.70Q | 2 | |
| 6 | 25127 Willow Peters | Albion Park | 18.43Q | 1 | |
| 7 | 40744 Emery Piennar | Shoalhaven | 19.38q | 1 | |
| 8 | 1537 Isabella Ansah | Nowra | 20.42q | 1 | |
| 9 | 34738 Hannah Auld | Lake Illawarra | 22.35 | 2 | |
| 10 | 40813 Imogen Bertholini | Shoalhaven | 28.87 | 1 | |
| -- | 40702 Hayley Astin Brigg | Shoalhaven | DNS | 2 |