Records
8 Advance: Top 3 Each Heat plus Next 2 Best Times
| Place | Name | Age | Team | Prelims | H. |
|---|---|---|---|---|---|
| 1 | 6448 Lucy Turner | Manly Warringah | 14.27Q | 2 | |
| 2 | 6967 Alice Orth | Manly Warringah | 14.77Q | 1 | |
| 3 | 618 Anya Keshwara | Ku-Ring-Gai | 14.92Q | 1 | |
| 4 | 109 Amelie Ogden | Ku-Ring-Gai | 15.25Q | 2 | |
| 5 | 14724 Kate Shaw | Mosman | 15.85Q | 1 | |
| 6 | 6746 Lexie Beesley | Manly Warringah | 16.67Q | 2 | |
| 7 | 6425 Sienna Milotic | Manly Warringah | 16.69q | 1 | |
| 8 | 21879 Rose Pengelly | Northern Districts | 17.20q | 1 | |
| 9 | 6599 Jasmine Denver | Manly Warringah | 17.48 | 2 | |
| 10 | 785 Julia Otani | Ku-Ring-Gai | 17.56 | 2 | |
| 11 | 14895 Isla Erihe | Mosman | 18.84 | 1 | |
| 12 | 723 Carly Veasey | Ku-Ring-Gai | 19.71 | 1 | |
| 13 | 183 Maxwell Verney | Ku-Ring-Gai | 19.74 | 2 | |
| -- | 14807 Sherlyn Na Lampoon | Mosman | DNS | 2 | |
| -- | 21829 Matilda Haggarty | Northern Districts | DNS | 1 |