| B Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Candice Hall | 21 | Loughboro Un | 1:01.83 |
| 1 | 2 | Rachel Anderson | 16 | Millfield | 1:01.79 |
| 2 | 3 | Brodie Judge | 17 | Wycombe Dist | 1:01.76 |
| 3 | 4 | Oriana Munden | 17 | Co Bristol | 1:01.55 |
| 4 | 5 | Tegan Drew | 18 | Plymouth Lea | 1:01.15 |
| 5 | 6 | Jessica McDonough | 16 | Co Liverpool | 1:01.53 |
| 6 | 7 | Mollie Allen | 20 | Loughboro Un | 1:01.61 |
| 7 | 8 | Caitlin Hubbard | 17 | Co Birm'ham | 1:01.78 |
| 8 | 9 | Katelyn Bergin | 17 | Mt Kelly | 1:01.82 |
| 9 | 10 | Sophie Maguire | 17 | Mid Sussex | 1:01.89 |