| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Holly GILES | 18 | Louth | 1:11.19 |
| 2 | 2 | Jessica O'HERLIHY | 18 | South Lincs | 1:10.94 |
| 3 | 3 | Beatrice FINCH | 18 | South Lincs | 1:09.46 |
| 4 | 4 | Emma CROKER | 19 | South Lincs | 1:05.16 |
| 5 | 5 | Alexandra BULAT | 18 | Co Lincoln P | 1:06.71 |
| 6 | 6 | Grace TURNER | 17 | Grantham | 1:09.60 |
| 7 | 7 | Alexandra HALLAM-STOTT | 18 | Grantham | 1:11.09 |
| 8 | 8 | Francesca HALLAM-STOTT | 17 | Grantham | 1:12.74 |