| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Francesca BROWNLESS | 10 | Lincoln TSA | 1:39.45 |
| 2 | 2 | Juliette KIM | 10 | Grantham | 1:32.44 |
| 3 | 3 | Aoife HICKEY | 11 | Deepings | 1:29.59 |
| 4 | 4 | Isobel DELDERFIELD | 11 | Co Lincoln P | 1:26.37 |
| 5 | 5 | Hollie-Ann CROOK | 11 | Grantham | 1:27.88 |
| 6 | 6 | Isla ROBINSON | 11 | Co Lincoln P | 1:29.89 |
| 7 | 7 | Emmeline GLEAVE | 10 | Grantham | 1:37.28 |
| 8 | 8 | Esme LUCAS | 11 | South Lincs | 1:40.01 |