| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Nancy JEFFRIES | 12 | Bexley | 41.96 |
| 1 | 2 | Amelie FAIRHURST | 12 | White Oak | 41.34 |
| 2 | 3 | Isabelle HEALY | 12 | Gwich Royals | 41.13 |
| 3 | 4 | Martha RICKARD | 12 | Bromley | 40.74 |
| 4 | 5 | Eva KANE | 12 | Erith & Dist | 39.54 |
| 5 | 6 | Jada YANKEY | 12 | Bromley | 40.62 |
| 6 | 7 | Sonia YANG | 12 | White Oak | 40.98 |
| 7 | 8 | Ruth ALLEN | 12 | Saxon Crown | 41.33 |
| 8 | 9 | Esme CAWTHORNE | 12 | Edenbridge | 41.90 |
| 9 | 10 | Ayla DALEY-ALLISON | 12 | Beckenham | 42.01 |