| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Candice Hall | 22 | Loughboro Un | 55.51 |
| 1 | 2 | Amy Grant | 20 | Loughboro Un | 55.43 |
| 2 | 3 | Evelyn Davis | 15 | Bromley | 55.29 |
| 3 | 4 | Erin Riordan | 20 | UCD Dublin | 55.22 |
| 4 | 5 | Isabella Hindley | 23 | Brompton | 54.39 |
| 5 | 6 | Tamryn Van Selm | 15 | Bromley | 54.83 |
| 6 | 7 | Emily Crane | 21 | Loughboro Un | 55.25 |
| 7 | 8 | Macy Lawrence | 17 | Mt Kelly | 55.42 |
| 8 | 9 | Emily Barclay | 22 | Loughboro Un | 55.44 |
| 9 | 10 | Leah Whittaker | 14 | Mt Kelly | 55.68 |