| Pos | Name | Age | Club | Time | Splits | |
|---|---|---|---|---|---|---|
| 1 | Amy Horsburgh | 12 | EGSX | 1:19.86 | 39.17 | 1:19.86 |
| 2 | Eedih Laidlaw | 12 | WDSX | 1:20.24 | 39.17 | 1:20.24 |
| 3 | Mollie Grubb | 12 | MDCX | 1:20.47 | 39.29 | 1:20.47 |
| 4 | Evie Clark | 12 | Trojan | 1:22.02 | 39.99 | 1:22.02 |
| 5 | Imogen Turner | 12 | EMHX | 1:22.11 | 40.13 | 1:22.11 |
| 6 | Niamh Wellwood | 12 | Haddington | 1:28.19 | 42.31 | 1:28.19 |