| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Mia Hayes | 12 | Linslade | 1:17.97 |
| 2 | 2 | Betsie Saville | 12 | Canvey Isl | 1:16.66 |
| 3 | 3 | Alice Buckingham | 12 | Team Luton | 1:15.80 |
| 4 | 4 | Olive Bailey | 12 | Colchester | 1:12.56 |
| 5 | 5 | Valeria Soldatihhina | 12 | West Norfolk | 1:15.74 |
| 6 | 6 | Eloise Palfree | 11 | Colchester | 1:15.80 |
| 7 | 7 | Summer Woodside | 12 | Co Peterboro | 1:17.15 |
| 8 | 8 | Lyra Schultz | 12 | Co Cambridge | 1:18.77 |