| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | Chabib El Azouizi |  MAR | 52.03 Q NR | 0.017 | 
| 2 | Reginald DePass |  USA | 52.20 Q | 0.018 | 
| 3 | Salah-eddine Ghaidi |  FRA | 52.66 | 0.015 | 
| 4 | Dmitriy Zhukov |  RUS | 52.68 | 0.015 | 
| 5 | Robson Cardoso dos Santos |  BRA | 53.42 | 0.036 | 
| 6 | Jose Moncada |  VEN | 53.60 | 0.017 | 
| 7 | Andreas Wickert |  GER | 54.42 | 0.017 | 
| 8 | Salem Al Ameeri |  BRN | 58.19 | 0.018 | 
| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | PeriklÃs Iakovákis |  GRE | 51.99 Q | 0.017 | 
| 2 | Tomasz Rudnik |  POL | 52.31 Q | 0.023 | 
| 3 | Adrian Medhurst |  AUS | 52.80 | 0.028 | 
| 4 | Mohamed Mouhlal |  MAR | 53.02 | 0.015 | 
| 5 | Sveinn Thorarinsson |  ISL | 53.46 | 0.034 | 
| 6 | Easa Hassan Fadol |  QAT | 54.38 | 0.020 | 
| Harris Robert |  FRA | DNS | 
| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | Peter Bate |  AUS | 50.93 Q PB | 0.019 | 
| 2 | Osiris MartÃnez |  CUB | 52.00 Q | 0.019 | 
| 3 | David Lloyd |  JAM | 52.06 q | 0.013 | 
| 4 | Jon Torben Flottmann |  GER | 52.88 | 0.019 | 
| 5 | Saso Bozic |  SLO | 53.04 | 0.016 | 
| 6 | Carlo Dambruoso |  ITA | 53.67 | 0.026 | 
| 7 | Roberto Carbajal |  MEX | 53.79 | 0.020 | 
| 8 | Moncef Kessab |  ALG | 54.93 | 0.036 | 
| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | Chin-Fu Lin |  TPE | 51.43 Q | 0.023 | 
| 2 | Satoshi Oshikawa |  JPN | 52.22 Q | 0.023 | 
| 3 | Tahar Ghozali |  ALG | 52.25 q NR | 0.019 | 
| 4 | Carlos Garcia |  ESP | 52.46 q | 0.015 | 
| 5 | Jakub Havlin |  CZE | 52.72 | 0.027 | 
| 6 | Dirk Le Roux |  RSA | 52.78 | 0.014 | 
| 7 | Kirill Sedykh |  RUS | 53.00 | 0.025 | 
| 8 | Essel Mensah |  GHA | 58.12 | 0.013 | 
| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | Terrance Wilson |  USA | 51.61 Q | |
| 2 | Francois Coetzee |  RSA | 51.64 Q | |
| 3 | Stefano Cuzzi |  ITA | 52.10 q | |
| 4 | Nicholas O'Brien |  NZL | 52.11 q PB | |
| 5 | Richard McDonald |  GBR | 52.33 q PB | |
| 6 | Hani Mourhej |  SYR | 52.61 NR | |
| 7 | Wendel dos Santos |  BRA | 54.98 | |
| 8 | Ryan Clarke |  JAM | 1:00.62 |