Place | Lane | Name | School | Time | Qual Mark |
1 | 4 | Curtis Liang (10) | Gunn | 54.26 | 00:52.15 |
2 | 5 | Winston Wey (10) | Lyn | 55.21 | 00:55.06 |
3 | 3 | Bogdan Zlatkov (10) | Gunn | 55.71 | 00:55.60 |
4 | 2 | Darrel Martinez (9) | Milp | 56.75 | 00:57.24 |
5 | 6 | Andrew Emmons (10) | LG | 57.38 | 00:57.20 |
6 | 7 | Wison Low (9) | Milp | 59.50 | 00:58.54 |
7 | 1 | John Duong (9) | Milp | 1:01.84 | 01:00.24 |