| Name | Age | Club | Time | Splits | ||
| 1 | Richard J Schafers | 15 | Dunedin | 53.84 | 26.93 | 53.84 |
| 2 | Andrew Aitchison | 15 | Aquanauts Li | 53.95 | 26.04 | 53.95 |
| 3 | James Kitching | 15 | Aquanauts Li | 54.87 | 26.66 | 54.87 |
| 4 | Kevin Dickson | 14 | Duns | 55.45 | 26.64 | 55.45 |
| 4 | Ben Hui | 15 | Warrender | 55.45 | 26.93 | 55.45 |
| 6 | Callum F Shaw | 15 | Carnegie | 56.26 | 26.65 | 56.26 |