| Heat Number - 1 | ||||||
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 0 | 1 | Archie Hare | 15 | S11 | RichmondDale | 5:44.91 |
| 1 | 3 | Darren Paredes-Flores | 18 | S10 | Bo Newham | 5:29.01 |
| 2 | 5 | Nathan Brown | 18 | S10 | RichmondDale | 5:21.10 |
| 3 | 7 | Owen Johnson | 15 | S10 | Repton | 5:07.05 |
| 4 | 9 | Max Davies | 16 | S8 | Worksop | 5:01.42 |
| 5 | 8 | Alfie Penfold | 20 | S13 | Crawley | 5:03.64 |
| 6 | 6 | Noah Burden | 15 | S9 | Satellite | 5:16.94 |
| 7 | 4 | Ethan Naisbitt | 20 | S9 | Co Manch Aq | 5:26.23 |
| 8 | 2 | Theo Wooden | 14 | S9 | Leatherhead | 5:44.58 |