| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Seren Page | 12 | teamipswich | 1:26.12 |
| 2 | 2 | Ellen Duffield | 12 | teamipswich | 1:24.40 |
| 3 | 3 | Rosalind Saise | 12 | teamipswich | 1:23.41 |
| 4 | 4 | Mia Lowe | 12 | Basildon Ph | 1:22.31 |
| 5 | 5 | Ellie-Rose Lyon | 12 | Norwich Swan | 1:23.10 |
| 6 | 6 | Gracie Comitti | 12 | Basildon Ph | 1:24.14 |
| 7 | 7 | Mabel Gigg | 12 | Co Norwich | 1:24.50 |
| 8 | 8 | Kirsty Neill | 12 | Bishop Stort | 1:27.47 |