| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Verity Cranswick | 7 | Retford | 36.00 |
| 3 | 3 | Olivia Sykes | 7 | Retford | 36.00 |
| 4 | 2 | Lexie Woodcock | 7 | Retford | 36.00 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Grayson Pauk | 8 | Retford | 35.00 |
| 2 | 7 | Samuel Grove | 8 | Retford | 35.00 |
| 3 | 9 | Emefa Dzoboku | 8 | Retford | 30.07 |
| 4 | 8 | Rose Merkuschev | 8 | Retford | 34.72 |
| 5 | 6 | Lilly Mangles | 8 | Retford | 35.00 |
| 6 | 4 | Rosie Harding | 7 | Retford | 36.00 |