| Name | Age | School | Time | Splits | ||
| 1 | Siobhan O'Connor | 14 | England | 1:12.30 | 34.26 | 1:12.30 |
| 2 | Federica Williamson | 13 | England | 1:16.21 | 34.99 | 1:16.21 |
| 3 | Emily Jones | 14 | Scotland | 1:16.75 | 35.81 | 1:16.75 |
| 4 | Niamh Bryson | 14 | Ireland | 1:17.77 | 36.48 | 1:17.77 |
| 5 | Ellie Minto | 14 | Scotland | 1:20.89 | 38.16 | 1:20.89 |
| 6 | Sarah Grange | 14 | Wales | 1:24.13 | 40.02 | 1:24.13 |