Records
8 Advance: Top 3 Each Heat plus Next 2 Best Times
| Place | Name | Age | Centre | Heats | H. |
|---|---|---|---|---|---|
| 1 | 31127 Corbyn Fainga'a | St George | 29.85Q | 2 | |
| 2 | 18958 Nolan Grantham | Illawong | 29.91Q | 1 | |
| 3 | 18981 Billy Herb | Illawong | 30.29Q | 2 | |
| 4 | 26720 Max Israel | South Eastern | 30.41Q | 1 | |
| 5 | 15517 Stirling Patterson | Eastern Suburbs | 30.69Q | 2 | |
| 6 | 324 William Bailey | Balmain | 30.98Q | 1 | |
| 7 | 27272 Knox Gordon | Sutherland | 31.18q | 2 | |
| 8 | 24686 Tenison Millward | Randwick Botany | 31.52q | 1 | |
| 9 | 2299 George Lambousis | Port Hacking | 32.25 | 1 | |
| 10 | 2412 Luke Morris | Port Hacking | 33.00 | 1 | |
| -- | 27292 Austin Watson-notl | Sutherland | DNS | 2 | |
| -- | 19332 Tyrese-Lloyd Owusu | Inner West | DNS | 1 | |
| -- | 479 Ethan Suleman | Balmain | DNS | 2 | |
| -- | 444 Isaac O'Brien | Balmain | DNS | 1 | |
| -- | 17561 Harlem Floyd-kerr | Helensburgh | DNS | 2 |