400m Hurdles Heats - (M), Heat:1 of 2 ; Official result since 09:43
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 4 | 13 | YU,CHIA-HSUAN | 50.49 | TPE | 54.76 | Q | ||
| 2 | 2 | 218 | OW YEONG YU XIANG | 55.67 | SIN | 54.86 | Q | ||
| 3 | 6 | 305 | QUEK CALVIN | WAC | 58.34 | Q | |||
| 4 | 7 | 255 | CHOO JAY ZHAN XIAN | SSSC | 59.89 | ||||
| 5 | 266 | LEE RAYMOND SCOTT | 56.40 | SWI | DNS | ||||
| 3 | 244 | WONG KAI YUEN | 50.11 | SIN | DNS |