| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Alexa ELLIFF | 12 | Deben | 39.96 |
| 2 | 2 | Ellie MATTHEWS | 12 | Linslade | 38.85 |
| 3 | 3 | Erin O'MEARA | 12 | Watford SC | 38.59 |
| 4 | 4 | Angharad EVANS | 12 | West Suffolk | 36.23 |
| 5 | 5 | Annabelle BURGESS | 12 | teamipswich | 38.03 |
| 6 | 6 | Poppy ALLEN | 12 | Basildon Ph | 38.68 |
| 7 | 7 | Jessica WOODWARD | 12 | Potters Bar | 39.92 |
| 8 | 8 | Eleanor WILLIAMS | 12 | Watford SC | 40.11 |