Records
8 Advance: Top 2 Each Heat plus Next 2 Best Times
| Place | Name | Age | Team | Prelims | H. |
|---|---|---|---|---|---|
| 1 | 366 Stephen Harvey | Ku-Ring-Gai | 32.10Q | 3 | |
| 2 | 15489 Harrison Rolley | Hornsby | 32.39Q | 2 | |
| 3 | 255 Bailey Vassella | Ku-Ring-Gai | 32.91Q | 1 | |
| 4 | 376 Julian Pita | Ku-Ring-Gai | 33.60Q | 1 | |
| 5 | 6458 Jack Vukovic | Manly Warringah | 33.83Q | 2 | |
| 6 | 6456 Tommy Black | Manly Warringah | 34.16Q | 3 | |
| 7 | 21768 Nox Entwisle | Northern Districts | 34.64q | 3 | |
| 8 | 7202 Marcus Hemsworth | Manly Warringah | 35.33q | 1 | |
| 9 | 15725 Alexander Schmidt | Hornsby | 35.83 | 3 | |
| 10 | 262 John Lukas | Ku-Ring-Gai | 36.29 | 2 | |
| 11 | 6480 Kai Cocks | Manly Warringah | 36.33 | 2 | |
| 12 | 6514 Sonny Farrell | Manly Warringah | 36.34 | 1 | |
| 13 | 15175 James Kirby | Mosman | 40.10 | 3 | |
| -- | 15215 Flynn Hanson | Mosman | DNS | 1 | |
| -- | 21929 Rhythm Bastola | Northern Districts | DNS | 2 | |
| -- | 15174 Rocco Stewart | Mosman | DNS | 1 | |
| -- | 21741 Nico Brichta | Northern Districts | DNS | 3 | |
| -- | 296 Lucas Huang | Ku-Ring-Gai | DNS | 1 | |
| -- | 21747 Ryan Regmi | Northern Districts | DNS | 2 |