| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1216 | Karsten WARHOLM |  NOR | 48.35 | 0.175 | 
| 2 | 1345 | Yasmani COPELLO |  TUR | 48.49 | 0.211 | 
| 3 | 1385 | Kerron Clement |  USA | 48.52 | 0.153 | 
| 4 | 1092 | Kemar MOWATT |  JAM | 48.99 | 0.189 | 
| 5 | 1405 | TJ HOLMES |  USA | 49.00 | 0.210 | 
| 6 | 844 | Juander SANTOS |  DOM | 49.04 | 0.158 | 
| 7 | 1268 | Abderrahman Almoubarrake S ALSALECK |  QAT | 49.74 | 0.206 | 
| 8 | 1298 | Kariem HUSSEIN |  SUI | 50.07 | 0.163 |