| B Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Gracie May | 14 | Hamilton UAE | 28.42 |
| 1 | 2 | Sara Kalawska | 15 | Hatfield | 27.99 |
| 2 | 3 | Rosie Morgan | 15 | Hamilton UAE | 27.74 |
| 3 | 4 | Jessica Calderbank | 21 | Oldham Aqua | 27.57 |
| 4 | 5 | Sophie Yendell | 16 | Co Derby | 27.52 |
| 5 | 6 | Kate Mills | 20 | Loughboro Un | 27.55 |
| 6 | 7 | Chiara Tommasello | 14 | Co Manch Aq | 27.70 |
| 7 | 8 | Isobel Grant | 20 | Co Sheffield | 27.83 |
| 8 | 9 | Maisie Elliott | 15 | Co Leicester | 28.09 |