| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Megan Barnes | 16 | Barnes SC | 58.84 |
| 1 | 2 | Maisie Elliott | 16 | Co Leicester | 58.62 |
| 2 | 3 | Beatrice Varley | 16 | Teddington | 58.14 |
| 3 | 4 | Emma Russell | 16 | Heart Of Mid | 57.67 |
| 4 | 5 | Caroline Lewitt | 16 | Natare W Lon | 57.46 |
| 5 | 6 | Betsy Wizard | 16 | Northampton | 57.65 |
| 6 | 7 | Kirstie Flynn | 16 | Natare W Lon | 57.83 |
| 7 | 8 | Mia Slevin | 16 | Derventio | 58.59 |
| 8 | 9 | Emma Van Selm | 16 | Bromley | 58.68 |
| 9 | 10 | Rosie Morgan | 16 | Aberdeen Per | 58.85 |