| Name | Age | Club | Time | Splits | ||
| 1 | Andrew Aitchison | 19 | Aquanauts Li | 1:01.66 | 28.16 | 1:01.66 |
| 2 | Connor Wilson | 16 | Warrender | 1:02.00 | 29.11 | 1:02.00 |
| 3 | Daniel Lim | 14 | Warrender | 1:03.57 | 29.79 | 1:03.57 |
| 4 | Graeme Hunter | 20 | Perth City | 1:03.79 | 30.93 | 1:03.79 |
| 5 | Blair Hershaw | 14 | Carnegie | 1:08.16 | 32.09 | 1:08.16 |
| 6 | Simran Wilks | 14 | Warrender | 1:08.22 | 32.21 | 1:08.22 |