| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Katherine ROWLAND | 11 | Beckenham | 1:37.72 |
| 2 | 2 | Martha ROBERTS | 11 | Sevenoaks | 1:38.20 |
| 3 | 3 | Emily BROWN | 11 | Sevenoaks | 1:31.22 |
| 4 | 4 | Eva OKARO | 11 | Sevenoaks | 1:30.91 |
| 5 | 5 | Izabella OKARO | 11 | Sevenoaks | 1:34.09 |
| 6 | 6 | Martha KING | 11 | Beckenham | 1:35.48 |
| 7 | 7 | Abigail SAUNDERS | 10 | Orpington OJ | 1:38.83 |
| 8 | 8 | Lola SUTTON | 11 | Thanet Swim | 1:38.08 |