Records
8 Advance: Top 3 Each Heat plus Next 2 Best Times
| Place | Name | Age | Team | Prelims | H. |
|---|---|---|---|---|---|
| 1 | 6541 Lotte Roessler | Manly Warringah | 13.92Q | 1 | |
| 2 | 530 Manvi Arabolu | Ku-Ring-Gai | 14.05Q | 2 | |
| 3 | 6509 Marley Scott-Faul | Manly Warringah | 13.96Q | 1 | |
| 4 | 6655 Milly McVicar | Manly Warringah | 14.72Q | 2 | |
| 5 | 15513 Grace Carlton | Hornsby | 14.92Q | 1 | |
| 6 | 6588 Ruby Roesner | Manly Warringah | 15.86Q | 2 | |
| 7 | 6547 Audrey Grether | Manly Warringah | 15.55q | 1 | |
| 8 | 6474 Ruby Tyler | Manly Warringah | 16.03q | 2 | |
| 9 | 6956 Carmen Rudomino | Manly Warringah | 16.04 | 1 | |
| 10 | 14734 Maisie Yorke | Mosman | 16.70 | 2 | |
| 11 | 594 Victoria Samson | Ku-Ring-Gai | 17.42 | 1 | |
| 12 | 382 Scout Linton | Ku-Ring-Gai | 18.37 | 2 | |
| -- | 14784 Sophie Savage | Mosman | DNS | 1 | |
| -- | 15122 Lucy Liubinskas | Mosman | DNS | 2 | |
| -- | 6838 Izzi Ingram | Manly Warringah | DNS | 2 | |
| -- | 399 Holly Kyle | Ku-Ring-Gai | DNS | 1 |