| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | Summer Woodcock | 10 | Retford | 3:30.00 |
| 3 | 4 | Starla Hope | 14 | Retford | 3:11.07 |
| 4 | 3 | Morgan Hope | 12 | Retford | 3:15.00 |
| 5 | 1 | Reid Hutchins | 10 | Retford | 3:40.11 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Lily Pashley | 13 | Retford | 2:43.26 |
| 2 | 8 | Noah Dewsnap | 13 | Retford | 2:29.30 |
| 3 | 10 | C Butterell-Quanbrough | 14 | Retford | 2:22.44 |
| 4 | 9 | Samuel Green | 14 | Retford | 2:27.39 |
| 5 | 7 | Imogen Howitt | 12 | Retford | 2:40.40 |
| 6 | 5 | Alfie Grounsell | 11 | Retford | 3:10.00 |