| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Izabella ZANIEWSKA | 12 | Boston | 39.31 |
| 2 | 2 | Amy FOSTER | 12 | Louth | 37.66 |
| 3 | 3 | Miley RICHARDSON | 12 | Co Lincoln P | 36.75 |
| 4 | 4 | Lily-May CLARK | 12 | Grantham | 35.49 |
| 5 | 5 | Alexandra BUDREVICIUTE | 12 | Co Lincoln P | 35.97 |
| 6 | 6 | Madeleine SEAGROATT | 12 | Louth | 37.06 |
| 7 | 7 | Thea WHOTTON | 12 | Louth | 37.96 |
| 8 | 8 | Lucy BARRATT | 12 | Gainsborough | 40.69 |