| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Bethany SAUNDERS | 16 | Co Peterboro | 58.58 |
| 2 | 2 | Molly FRANCIS | 14 | Hatfield | 58.38 |
| 3 | 3 | Mollie ALLEN | 17 | Co Peterboro | 57.96 |
| 4 | 4 | Rebecca SHERWIN | 15 | teamipswich | 56.95 |
| 5 | 5 | Amy GODSAVE | 16 | Hoddesdon | 57.08 |
| 6 | 6 | Abigail WHITING | 16 | West Norfolk | 58.11 |
| 7 | 7 | Mia MASPERS | 13 | teamipswich | 58.43 |
| 8 | 8 | Rachel WELLINGS | 15 | Co Peterboro | 58.66 |