| Name | Year | Club | Time | Splits | ||
| 1 | Caitlin Rees | 95 | Coast | 1:11.10 | 33.17 | 1:11.10 |
| 2 | Ellie Finlayson | 95 | Dun City Aqu | 1:12.26 | 33.68 | 1:12.26 |
| 3 | Laura Muncey | 95 | Perth City | 1:12.31 | 34.28 | 1:12.31 |
| 4 | Rebecca Craigmile | 95 | Coast | 1:15.25 | 35.06 | 1:15.25 |
| 5 | Hannah Grayson | 95 | Coast | 1:18.02 | 35.77 | 1:18.02 |
| 6 | Chloe Kemp | 95 | Coast | 1:22.67 | 38.63 | 1:22.67 |