| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | FRANCESCA SMITH | 11 | Northall'ton | 3:43.99 |
| 2 | 3 | ALEXANDER MCCARTNEY | 14 | Northall'ton | 3:35.55 |
| 3 | 2 | MATTHEW CURRAN | 12 | Northall'ton | 3:35.97 |
| 4 | 8 | IZZY CHOULES | 12 | Northall'ton | 3.:30..0 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | FINLAY HALLIDAY | 10 | Northall'ton | 3:13.54 |
| 2 | 7 | MAISIE MORRIS | 17 | Northall'ton | 2:31.07 |
| 3 | 6 | NATHAN LOFTHOUSE | 12 | Northall'ton | 3:00.40 |
| 4 | 4 | MATTHEW MARGRETT | 13 | Northall'ton | 3:21.60 |