| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Amy PALMER | 14 | Co Lincoln P | 40.33 |
| 2 | 2 | Erin ARCHER | 14 | Co Lincoln P | 40.03 |
| 3 | 3 | Annabelle JAY | 14 | Grantham | 37.94 |
| 4 | 4 | Maisie MATTHEWS | 14 | Louth | 36.47 |
| 5 | 5 | Suzanna BURKE | 14 | Louth | 37.71 |
| 6 | 6 | Amy TAYLOR | 14 | Grantham | 39.46 |
| 7 | 7 | Lucy WILLATTS | 14 | Grantham | 40.27 |
| 8 | 8 | Darcey WOOD | 14 | Grantham | 40.86 |