| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Theo OLIVER | 13 | Winsford | 20:04.40 |
| 2 | 3 | Joshua HOWARD-HUGHES | 14 | Halton | 18:20.10 |
| 3 | 5 | Samuel COULTHARD | 15 | Southport | 17:24.20 |
| 4 | 7 | Ethan WRIGHT | 16 | Winsford | 17:00.80 |
| 5 | 6 | Henry OLIVER | 16 | Winsford | 17:14.30 |
| 6 | 4 | Alexander MOSS | 17 | Winsford | 17:49.50 |
| 7 | 2 | Liam CAREY | 13 | Wigan BEST | 18:37.54 |