| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Holly LAMB | 12 | Southend | 40.36 |
| 2 | 2 | Lucy COIA-BELL | 12 | Co St Albans | 39.90 |
| 3 | 3 | Eloisa MILLER | 12 | C Beds SS | 38.84 |
| 4 | 4 | Charlotte WHITE | 12 | West Suffolk | 38.14 |
| 5 | 5 | Erin LITTLE | 12 | Chelmsford | 38.82 |
| 6 | 6 | Beth YOUNG | 11 | Felixstowe | 39.44 |
| 7 | 7 | Francesca LOW | 12 | Chelmsford | 40.25 |
| 8 | 8 | Hollie ARMSTRONG | 12 | teamipswich | 40.46 |