| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Kathryn Fletcher | 9 | Thirsk WH | |
| 2 | 3 | Millie Haider | 8 | Northall'ton | |
| 3 | 2 | Lara Jones | 9 | Northall'ton | |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 5 | Jessica Read | 9 | Northall'ton | |
| 3 | 4 | Emily Kingdon | 10 | Northall'ton | |
| Heat Number - 3 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Beatrix Allcock | 9 | Stokesley | 34.94 |
| 2 | 9 | Emilia Charlton | 10 | Northall'ton | 27.50 |
| 3 | 8 | Hannah Mullenheim | 10 | Northall'ton | 32.78 |
| 4 | 6 | Abigail Ferguson | 8 | Northall'ton | 43.98 |