| Pos | Name | Age | Club | Time | Splits | |
|---|---|---|---|---|---|---|
| 1 | Mollie Grubb | 11 | Dun City Aqu | 1:38.52 | 48.26 | 1:38.52 |
| 2 | Georgia McLeod | 11 | Dun City Aqu | 1:39.88 | 47.59 | 1:39.88 |
| 3 | Natasha Bissett | 11 | Dun City Aqu | 1:42.54 | 50.85 | 1:42.54 |
| 4 | Ella Whike | 11 | EHMX | 1:45.14 | 51.22 | 1:45.14 |
| 5 | Freyja Aspinall | 11 | Haddington | 1:53.57 | 51.34 | 1:53.57 |
| 6 | Marcelina Struminska | 11 | Dun City Aqu | 1:54.73 | 54.13 | 1:54.73 |
| 7 | Emily Westgarth | 11 | Haddington | 1:57.84 | 54.72 | 1:57.84 |
| 8 | Peyton Brodie | 11 | Haddington | 2:03.06 | 56.58 | 2:03.06 |