| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 1 | Maddison Walker | 9 | Thornaby | 29.18 |
| 3 | 3 | Amelia Rigg | 9 | Saltburn Mar | 24.37 |
| 4 | 2 | Holly Buckworth | 8 | Guisborough | 25.55 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 4 | Grace Donovan | 9 | Eston | 24.52 |
| 2 | 6 | Jessica Lynch | 9 | Saltburn Mar | 23.16 |
| 3 | 8 | Yasmin Marshall | 10 | Northall'ton | 17.51 |
| 4 | 7 | Elyse Reacroft | 10 | Guisborough | DN:C . |
| 5 | 5 | Harriet Stannard | 9 | Saltburn Mar | 24.63 |