| Pos | Name | Age | Club | Time | Splits | |
|---|---|---|---|---|---|---|
| 1 | Coates, Thomas | 13 | Livingston | 1:12.34 | 35.42 | 1:12.34 |
| 2 | Hale, Felix | 13 | Inverleith | 1:14.25 | 36.51 | 1:14.25 |
| 3 | Ballantyne, Aidan | 12 | Haddington | 1:23.23 | 40.93 | 1:23.23 |
| 4 | Levy, Mitchell W | 13 | Tranent | 1:25.63 | 41.72 | 1:25.63 |
| 5 | Sommerville, William | 13 | Dunedin | 1:28.39 | 41.89 | 1:28.39 |
| 6 | Ritch, Thomas | 13 | Portobello | 1:35.86 | 46.33 | 1:35.86 |
| 7 | Muirhead, Kyle | 9 | Aquanauts Li | 1:39.60 | ||