| B Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Anna Morgan | 15 | Hamilton UAE | 32.51 |
| 1 | 2 | Jemimah Berkeley | 14 | RTW Monson | 32.25 |
| 2 | 3 | Rebecca Clynes | 16 | Co Leeds | 32.08 |
| 3 | 4 | Stella Cookson | 18 | Team Bath AS | 31.93 |
| 4 | 5 | Kierra Smith | 24 | HPC-Ont CAN | 31.80 |
| 5 | 6 | Illizane Pinfold | 14 | Co Oxford | 31.85 |
| 6 | 7 | Angharad Evans | 15 | Ellesmere Co | 31.99 |
| 7 | 8 | Rebecca Burton | 20 | Loughboro Un | 32.11 |
| 8 | 9 | Abigail Hurst | 17 | Millfield | 32.45 |
| 9 | 10 | Lucia Grant | 15 | Plymouth Lea | 32.56 |