| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Libby Dunford | 16 | Hoddesdon | 36.95 |
| 2 | 2 | Lucy Park | 23 | Watford SC | 35.81 |
| 3 | 3 | Fleur Hines | 16 | Watford SC | 35.80 |
| 4 | 4 | Erin O'Meara | 16 | Watford SC | 34.78 |
| 5 | 5 | Sophie Payne | 17 | Hatfield | 35.78 |
| 6 | 6 | Grace Stedman | 16 | Co St Albans | 35.81 |
| 7 | 7 | Ella Murphy | 17 | Harpenden | 36.13 |
| 8 | 8 | Alara Norton | 18 | Hatfield | 37.23 |