| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Eleanor Porter | 12 | Camden Swiss | 1:08.80 |
| 1 | 2 | Elizabeth Warner | 13 | Co Leeds | 1:08.22 |
| 2 | 3 | Alexandra Nurney | 13 | Hatfield | 1:08.13 |
| 3 | 4 | Mei Hayakawa | 13 | Barnet Copt | 1:07.45 |
| 4 | 5 | Iris Hurst | 13 | Warrington W | 1:06.91 |
| 5 | 6 | Evie Sampson | 13 | Southport | 1:07.27 |
| 6 | 7 | Honey Robinson | 13 | N & D PP SC | 1:07.53 |
| 7 | 8 | Amelia Fenner | 13 | Basildon Ph | 1:08.16 |
| 8 | 9 | Liberty Jones | 13 | TauntonDeane | 1:08.69 |
| 9 | 10 | Chiu Man Rachel Ho | 13 | Co Birm'ham | 1:09.07 |