| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Ellie Crumpler | 14 | Poole | 35.09 |
| 2 | 2 | Georgina Horn | 14 | N Dorset SC | 34.44 |
| 3 | 3 | Anna Miles-Simmonite | 14 | West Dorset | 32.66 |
| 4 | 4 | Jessica Huggins | 14 | Poole | 30.30 |
| 5 | 5 | Freya Coupe | 14 | Poole | 32.45 |
| 6 | 6 | Evie Loudoun | 14 | Wareham | 33.61 |
| 7 | 7 | Lottie Vavasour | 14 | Poole | 34.61 |
| 8 | 8 | Charlotte Piper | 14 | Poole | 36.55 |