| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Elizabeth Neilson | 12 | Northall'ton | 41.46 |
| 2 | 3 | Evie Wharton | 13 | Northall'ton | 40.30 |
| 3 | 2 | Charlotte Hinde | 13 | Northall'ton | 41.32 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 5 | Rebecca Wilkin | 16 | Northall'ton | 31.63 |
| 3 | 4 | C Jackson-Bowers | 11 | Northall'ton | 40.16 |