| B Final | |||||
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 1 | Mabel WALKER | 07 | Repton | 34.64 |
| 2 | 2 | Sholah ROBINSON | 06 | Co Sheffield | 34.49 |
| 3 | 3 | Colleen DEVLIN | 04 | Stockport Mo | 34.22 |
| 4 | 4 | Paige FENTON | 03 | Loughboro Un | 33.81 |
| 5 | 5 | Charlotte BIANCHI | 06 | Co Sheffield | 34.06 |
| 6 | 6 | Denisa-Elena GOGU | 98 | Co Manch Aq | 34.43 |
| 7 | 7 | Annabelle WILKINSON | 05 | Chesterfield | 34.60 |
| 8 | 8 | Emily SHRIMPTON | 05 | Tadcaster | 38.14 |