| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Hannah Canty | 13 | Southport | : . |
| 1 | 2 | Ella Mcever | 14 | Camden Swiss | : . |
| 2 | 3 | Kara Dimond | 14 | Sevenoaks | : . |
| 3 | 4 | Lilou Saeijs | 14 | Bromley | : . |
| 4 | 5 | Bella Baird | 14 | Mt Kelly | : . |
| 5 | 6 | Hollie Armstrong | 14 | teamipswich | : . |
| 6 | 7 | Abby Murrell | 14 | Co Milton K | : . |
| 7 | 8 | Amber Piper | 13 | Thanet Swim | : . |
| 8 | 9 | Macy Dexter | 13 | Co Cambridge | : . |
| 9 | 10 | Ciara Mahanta | 14 | Worcester | : . |