| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Holly Hagan | 15 | Romford Town | 1:18.00 |
| 1 | 2 | Karina Andrea | 15 | Maidenhead | 1:17.59 |
| 2 | 3 | Angel-Skye Davenport | 15 | Mt Kelly | 1:17.09 |
| 3 | 4 | Ela Norton | 15 | Hatfield | 1:16.61 |
| 4 | 5 | Sophie Baker | 15 | Chesterfield | 1:15.59 |
| 5 | 6 | Cora Lanham | 15 | Street | 1:16.48 |
| 6 | 7 | Amy Fowlds | 15 | Guildford Ct | 1:16.63 |
| 7 | 8 | Maddison Lay | 15 | Thanet Swim | 1:17.58 |
| 8 | 9 | Merewyn Jones | 15 | Co Derby | 1:17.81 |