| POS | BIB | ATHLETE | Result | REACTION TIME | Note | |
|---|---|---|---|---|---|---|
| 1 | 422 | ADISAK PORNSOMPHOT |
47.98 | |||
| 2 | 511 | KIAN LABAR |
48.50 | |||
| 3 | 104 | MUHAMAD QARLIFF KUYT BIN ABDULLAH |
48.63 | |||
| 4 | 423 | AMOS MAHAKANJANA UNGER |
49.37 | |||
| 5 | 113 | KABEENESH AL MANICKAM |
49.74 | |||
| 6 | 214 | RANGGA ADE |
49.88 | |||
| 7 | 513 | JOHN CLINTON MITCHEL ABETONG |
51.04 | |||
| 8 | 309 | SEAN RUSSELL TAY |
51.39 |
| POS | HEAT | BIB | TEAM | ATHLETE | RESULT | WIND |
|---|---|---|---|---|---|---|
| 1 | 1 | 422 | THAILAND | ADISAK PORNSOMPHOT | 47.98 | |
| 2 | 1 | 511 | PHILIPPINES | KIAN LABAR | 48.50 | |
| 3 | 1 | 104 | MALAYSIA | MUHAMAD QARLIFF KUYT BIN ABDULL | 48.63 | |
| 4 | 1 | 423 | THAILAND | AMOS MAHAKANJANA UNGER | 49.37 | |
| 5 | 1 | 113 | MALAYSIA | KABEENESH AL MANICKAM | 49.74 | |
| 6 | 1 | 214 | INDONESIA | RANGGA ADE | 49.88 | |
| 7 | 1 | 513 | PHILIPPINES | JOHN CLINTON MITCHEL ABETONG | 51.04 | |
| 8 | 1 | 309 | SINGAPORE | SEAN RUSSELL TAY | 51.39 |