| Name | Age | Club | Time | Splits | ||
| 1 | Sycerika McMahon | 12 | Swim Ireland | 1:16.18 | 35.77 | 1:16.18 |
| 2 | Emily Jones | 12 | Garioch | 1:20.70 | 38.10 | 1:20.70 |
| 3 | Laura McDade | 12 | Aquabears | 1:22.42 | 39.37 | 1:22.42 |
| 3 | Grace Conlon | 12 | Lincoln Vulc | 1:22.42 | 39.05 | 1:22.42 |
| 5 | Jasmin Hamer | 11 | Wigan B | 1:25.62 | 40.44 | 1:25.62 |
| 6 | Laura Hibbert | 11 | Co Man Aq | 1:25.83 | 40.95 | 1:25.83 |
| 7 | Nikoline Laidlaw | 12 | Stirling | 1:26.48 | 41.42 | 1:26.48 |
| 8 | Joanna Whitelaw | 11 | East Lothian | 1:28.53 | 42.02 | 1:28.53 |