| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Lucy WILLATTS | 14 | Grantham | 1:07.23 |
| 2 | 2 | Amelia BIRD | 14 | Skegness | 1:05.76 |
| 3 | 3 | Amy PALMER | 14 | Co Lincoln P | 1:04.74 |
| 4 | 4 | Maisie MATTHEWS | 14 | Louth | 1:04.05 |
| 5 | 5 | Annabelle JAY | 14 | Grantham | 1:04.62 |
| 6 | 6 | Suzanna BURKE | 14 | Louth | 1:05.32 |
| 7 | 7 | Erin ARCHER | 14 | Co Lincoln P | 1:06.13 |
| 8 | 8 | Eliza MULHOLLAND | 14 | Lincoln TSA | 1:08.05 |