| Name | Age | Club | Time | Splits | ||
| 1 | Samantha Caulfield | 15 | Kinross HS | 59.45 | 28.63 | 59.45 |
| 2 | Katie Philips | 15 | Websters HS | 1:01.17 | 29.72 | 1:01.17 |
| 3 | Erin Cummins | 14 | Perth Gram | 1:01.49 | 30.02 | 1:01.49 |
| 4 | Emily Horne | 15 | Perth Acad | 1:02.25 | 29.77 | 1:02.25 |
| 5 | Amy Robertson | 14 | Monifieth HS | 1:02.70 | 30.35 | 1:02.70 |
| 6 | Robyn Hill | 14 | Websters HS | 1:03.75 | 30.54 | 1:03.75 |