| Final | |||||
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 1 | Megan BROWN | 09 | Grantham SC | 38.16 |
| 2 | 2 | Evie LILLEY | 09 | Lincoln Vulcans SC | 37.84 |
| 3 | 3 | Helena FIELD | 09 | Louth Dolphins SC | 37.36 |
| 4 | 4 | Alice-Mae DOWNS | 09 | Lincoln Vulcans SC | 36.85 |
| 5 | 5 | Grace MACDONALD | 09 | Grantham SC | 37.23 |
| 6 | 6 | Sigourney BOLTON | 09 | South Lincs Competitive SC | 37.80 |
| 7 | 7 | Isabella WALTER | 09 | Louth Dolphins SC | 38.00 |
| 8 | 8 | Lilli-Rose CARR | 09 | City of Linc Pentaqua SC | 38.75 |