| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | Leo MANCHESTER | 9 | Southport | |
| 3 | 4 | Finlay DALE | 11 | Southport | 46.92 |
| 4 | 3 | Henry WILCE | 11 | Southport | |
| 5 | 1 | Max WISSE | 10 | Southport | |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Douglas JONES | 12 | Southport | 34.50 |
| 2 | 8 | Flynn SMITH | 17 | Southport | 27.50 |
| 3 | 10 | Charles KELLY | 19 | Southport | 26.40 |
| 4 | 9 | Joshua MONIZ | 26 | Southport | 27.50 |
| 5 | 7 | Joel THOMPSON | 16 | Southport | 31.15 |
| 6 | 5 | Logan BYRNE | 12 | Southport | 37.60 |