| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | ARWEN ROSS | 10 | Thirsk WH | |
| 3 | 3 | ELEANOR MCLEAN | 12 | Stokesley | 48.49 |
| 4 | 2 | SARAH HUGILL | 12 | Stokesley | 55.17 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | MILLIE FLETCHER | 16 | Thirsk WH | 40.13 |
| 2 | 6 | ABIGAIL MAZHAMBE | 16 | Eston | 37.52 |
| 3 | 8 | EDIE SLATTER | 16 | Eston | 32.53 |
| 4 | 7 | ISABELLE SMITH | 14 | Northall'ton | 34.13 |
| 5 | 5 | GRACIE SHEA | 14 | Eston | 37.72 |