| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 2 | Edward Jiang | 11 | Thirsk WH | |
| 2 | 4 | Finlay Thynne | 11 | Loftus Dol | 2:15.00 |
| 3 | 3 | Henry Jinks | 12 | Northall'ton | |
| 4 | 1 | Finnley Johnstone | 10 | Northall'ton | |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Thomas Lewis | 13 | Thirsk WH | 1:38.90 |
| 2 | 8 | Thomas Hanson | 49 | Northall'ton | 1:29.62 |
| 3 | 7 | Finley Whiteley | 12 | Northall'ton | 1:30.80 |
| 4 | 5 | Kingsley Lonsdale | 11 | Thirsk WH | 1:44.68 |