| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Chloe Adams | 13 | Wycombe Dist | 1:18.29 |
| 1 | 2 | Beth Young | 13 | Felixstowe | 1:18.15 |
| 2 | 3 | Violet Hearfield | 13 | Middlesboro | 1:17.69 |
| 3 | 4 | Charlotte Cope | 12 | Guildford Ct | 1:17.22 |
| 4 | 5 | Rosie Richards | 13 | Rushmoor Ryl | 1:15.89 |
| 5 | 6 | Charlotte Bianchi | 13 | Co Sheffield | 1:16.81 |
| 6 | 7 | Emma Allatt-File | 13 | Crawley | 1:17.53 |
| 7 | 8 | Zara Beaumont | 13 | Co Hereford | 1:17.94 |
| 8 | 9 | Amber Piper | 13 | Thanet Swim | 1:18.18 |
| 9 | 10 | Sophie King | 13 | Woking | 1:18.46 |