Records
9 Advance: Top 3 Each Heat plus Next 2 Best Times
| Place | Name | Age | Team | Prelims | H. |
|---|---|---|---|---|---|
| 1 | 6736 Bodhi McGregor | Manly Warringah | 10.84Q | 2 | |
| 2 | 6497 Harry Weir | Manly Warringah | 11.62Q | 1 | |
| 3 | 6769 Liam Lowe | Manly Warringah | 11.01Q | 2 | |
| 4 | 573 Rory Kurath | Ku-Ring-Gai | 12.11Q | 1 | |
| 5 | 798 Boston Duong | Ku-Ring-Gai | 12.46Q | 1 | |
| 6 | 138 Thomas Clarke | Ku-Ring-Gai | 12.54Q | 2 | |
| 7 | 6406 Jasper Lanza | Manly Warringah | 12.56q | 2 | |
| 8 | 203 Jordan Blake | Ku-Ring-Gai | 12.95q | 1 | |
| 8 | 6539 Emerson Lane | Manly Warringah | 12.95q | 1 | |
| 10 | 14775 Hudson Vakili | Mosman | 13.41 | 2 | |
| 11 | 14776 Louie Worton | Mosman | 13.44 | 1 | |
| 12 | 14854 Charlie Pin | Mosman | 13.54 | 1 | |
| 13 | 15029 Vincent Qiu | Mosman | 13.96 | 2 | |
| 14 | 801 Connor To | Ku-Ring-Gai | 16.61 | 2 |