| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Jessica Morgan | 16 | Southport | : . |
| 1 | 2 | Ella Mcever | 14 | Camden Swiss | : . |
| 2 | 3 | Madeleine Glen | 16 | Sevenoaks | : . |
| 3 | 4 | Eliza Powell | 15 | Bromley | : . |
| 4 | 5 | Imogen Lambert | 15 | Mt Kelly | : . |
| 5 | 6 | Hollie Armstrong | 14 | teamipswich | : . |
| 6 | 7 | Abby Murrell | 14 | Co Milton K | : . |
| 7 | 8 | Maddison Lay | 15 | Thanet Swim | : . |
| 8 | 9 | Imogen Bloomfield | 16 | Co Cambridge | : . |
| 9 | 10 | Lauren Annis | 15 | Worcester | : . |