| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Millie Tomlin-Davies | 16 | Co Oxford | 35.53 |
| 1 | 2 | Anna Stansfield | 16 | Leatherhead | 34.94 |
| 2 | 3 | Lucy Peers | 16 | Havant & Wat | 34.64 |
| 3 | 4 | Ella Holdway | 16 | Rushmoor Ryl | 34.44 |
| 4 | 5 | Madeleine Glen | 16 | Sevenoaks | 33.68 |
| 5 | 6 | Madeline Spencer | 16 | Toronto CAN | 33.81 |
| 6 | 7 | Flora Perkin | 16 | Exeter City | 34.61 |
| 7 | 8 | Charlotte McClure | 16 | Co Coventry | 34.74 |
| 8 | 9 | Olivia Clare | 16 | Co Manch Aq | 35.48 |
| 9 | 10 | Erin O'Meara | 16 | Co St Albans | 35.67 |