| Name | Age | Club | Time | Splits | ||
| 1 | Cerian Davies | 14 | Swim Wales | 1:06.75 | 32.15 | 1:06.75 |
| 2 | Hayley Roberts | 13 | Swim Wales | 1:06.83 | 31.92 | 1:06.83 |
| 3 | Charlotte Bryan | 13 | Swim Wales | 1:06.92 | 31.75 | 1:06.92 |
| 4 | Emily Heyburn | 14 | Larne | 1:07.21 | 31.42 | 1:07.21 |
| 5 | Bethan Davis | 14 | Swim Wales | 1:07.77 | 31.99 | 1:07.77 |
| 5 | Blaine Small | 14 | Carnegie | 1:07.77 | 31.49 | 1:07.77 |
| 7 | Kirsty Paterson | 14 | Dunedin | 1:08.97 | 32.29 | 1:08.97 |
| 8 | Sara Lougher | 13 | Swim Wales | 1:10.55 | 33.33 | 1:10.55 |