| Name | Age | Club | Time | Splits | ||
| 1 | Daniel Scott | 15 | Glenrothes | 53.28 | 25.87 | 53.28 |
| 2 | Iain Scanlon | 15 | Dunedin | 53.35 | 26.29 | 53.35 |
| 3 | Richard Schafers | 14 | Dunedin | 55.48 | 27.07 | 55.48 |
| 4 | Jak Scott | 14 | Duns | 56.87 | 27.79 | 56.87 |
| 5 | Callum F Shaw | 14 | Carnegie | 56.97 | 27.63 | 56.97 |
| -- | James Kitching | 14 | Aquanauts Li | DQ | ||