| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Elisa Giraud | 14 | Corby | 42.78 |
| 2 | 2 | Phillippa Cutmore | 14 | Corby | 42.11 |
| 3 | 3 | Martha Blake | 14 | Corby | 39.78 |
| 4 | 4 | Safiyah Pawlyszyn | 14 | Wellingboro | 39.02 |
| 5 | 5 | Jessica Barrett | 14 | Corby | 39.72 |
| 6 | 6 | Skylar Glendenning | 14 | Corby | 41.18 |
| 7 | 7 | Isabelle Pawlowski | 14 | Corby | 42.15 |
| 8 | 8 | Safiya Mezher | 14 | Northampton | 43.45 |