| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 468 | Wouter le Roux |  RSA | 51.85 Q | 0.156 | 
| 2 | 304 | Yuki Iwataki |  JPN | 52.36 Q PB | 0.192 | 
| 3 | 561 | Jamaal Charles |  USA | 52.36 Q PB | 0.148 | 
| 4 | 348 | Bandar Yahya Shraheli |  KSA | 52.64 Q PB | 0.245 | 
| 5 | 296 | Josef Robertson |  JAM | 52.83 PB | 0.189 | 
| 6 | 233 | KonstadÃnos AnastasÃou |  GRE | 52.89 PB | 0.163 | 
| 7 | 545 | Tuncay Örs |  TUR | 53.28 PB | 0.163 | 
| 487 | Seleke Samake |  SEN | DNF | 0.153 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 585 | Jason Richardson |  USA | 51.30 Q SB | 0.201 | 
| 2 | 450 | Milton Dias |  POR | 52.12 Q PB | 0.119 | 
| 3 | 466 | Johann Hanekom |  RSA | 52.14 Q | 0.155 | 
| 4 | 307 | Go Tanabe |  JPN | 52.28 Q | 0.193 | 
| 5 | 211 | Torben Bieler |  GER | 53.38 | 0.203 | 
| 6 | 68 | Quinton Gamble |  CAN | 54.00 | 0.168 | 
| 7 | 18 | Martin Fladenhofer |  AUT | 54.85 | 0.159 | 
| 353 | Bandar Yahya Shraheli |  KSA | DNS | 0.000 |