| Name | Age | School | Time | Splits | ||
| 1 | Amelia Maughan | 14 | England | 58.23 | 28.43 | 58.23 |
| 2 | Siwan Thomas-Howells | 13 | Wales | 1:01.15 | 29.91 | 1:01.15 |
| 3 | Courtney Rowan | 14 | England | 1:01.16 | 29.70 | 1:01.16 |
| 4 | Rachel Sharples | 13 | Scotland | 1:01.21 | 29.86 | 1:01.21 |
| 5 | Kirsty Simpson | 14 | Scotland | 1:01.92 | 29.23 | 1:01.92 |
| 6 | Ciara McNevin | 13 | Ireland | 1:02.39 | 30.20 | 1:02.39 |
| 7 | Hannah Reynolds | 14 | Wales | 1:04.31 | 31.24 | 1:04.31 |
| 8 | Eva Martin | 13 | Ireland | 1:04.75 | 31.13 | 1:04.75 |