| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 10 | Millie Haider | 8 | Northall'ton | 62:.0.0 |
| 3 | 2 | Emily Kingdon | 10 | Northall'ton | |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 3 | Abigail Ferguson | 8 | Northall'ton | |
| 2 | 5 | Lara Jones | 9 | Northall'ton | |
| 3 | 4 | Hannah Mullenheim | 10 | Northall'ton | |
| Heat Number - 3 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Beatrix Allcock | 9 | Stokesley | 30.79 |
| 2 | 9 | Charis Green | 9 | Stokesley | 23.71 |
| 3 | 8 | Fiona Allan | 10 | Stokesley | 30.46 |
| 4 | 6 | Jessica Read | 9 | Northall'ton | 50.39 |