| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 2 | Lexi-Mae Monk | 8 | Northall'ton | |
| 2 | 4 | Hettie Binks | 11 | Thirsk WH | 1:52.00 |
| 3 | 3 | Holly Bamber | 11 | Thirsk WH | 1:57.60 |
| 4 | 1 | Charlotte Follett | 11 | Thirsk WH | |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Scarlett Whitwell | 12 | Thirsk WH | 1:40.20 |
| 2 | 8 | Lucy Watters | 18 | Northall'ton | 1:25.81 |
| 3 | 7 | Millie Fletcher | 14 | Thirsk WH | 1:39.63 |
| 4 | 5 | Amaya McQueen | 12 | Northall'ton | 1:43.54 |