| Final | |||||
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 1 | Amy BLOW | 11 | City of Linc Pentaqua SC | 45.84 |
| 2 | 2 | Amy PALMER | 11 | City of Linc Pentaqua SC | 44.54 |
| 3 | 3 | Maisie MATTHEWS | 11 | Louth Dolphins SC | 41.05 |
| 4 | 4 | Kitty LAMB | 11 | South Lincs Competitive SC | 39.33 |
| 5 | 5 | Suzanna BURKE | 11 | Louth Dolphins SC | 40.77 |
| 6 | 6 | Amy TAYLOR | 11 | Grantham SC | 42.61 |
| 7 | 7 | Erin ARCHER | 11 | City of Linc Pentaqua SC | 44.82 |
| 8 | 8 | Darcey WOOD | 11 | Grantham SC | 46.50 |