| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | Jamie HOWE | 10 | Southport | 3:40.00 |
| 3 | 4 | Nero SAVAGE | 11 | Southport | 3:31.18 |
| 4 | 3 | Charlie PARKES | 9 | Southport | 3:33.57 |
| 5 | 1 | James CONNING | 10 | Southport | 3:45.29 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Isaac RALSTON | 12 | Southport | 3:00.00 |
| 2 | 8 | Max WISSE | 12 | Southport | 2:58.00 |
| 3 | 10 | Callum BYRNE | 15 | Southport | 2:05.11 |
| 4 | 9 | Luke KERSHAW | 11 | Southport | 2:55.39 |
| 5 | 7 | Toby WILCE | 10 | Southport | 3:00.00 |
| 6 | 5 | Oliver JAMES | 12 | Southport | 3:29.87 |