| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 804 | Jeshua Anderson |  USA | 51.12 Q | 0.226 | 
| 2 | 380 | Taras Shtcherenko |  ISR | 51.44 Q NJ | 0.210 | 
| 3 | 44 | Shane BRATHWAITE |  BAR | 51.66 Q NJ | 0.194 | 
| 4 | 749 | Jehue Gordon |  TTO | 52.30 q | 0.179 | 
| 5 | 478 | Jasem Waleed Al-Mas |  KUW | 52.43 q | 0.128 | 
| 6 | 763 | Idriss Sassi |  TUN | 53.97 PB | 0.151 | 
| 7 | 618 | Victor Valentin |  PUR | 54.05 | 0.187 | 
| 8 | 28 | Stephan Ender |  AUT | 54.55 | 0.130 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 430 | Tomoharu Kino |  JPN | 51.77 Q | 0.165 | 
| 2 | 445 | John Kituu Wambua |  KEN | 52.02 Q | 0.195 | 
| 3 | 502 | Valdas Valintélis |  LTU | 52.83 Q PB | 0.203 | 
| 4 | 463 | Hamada Al-Bishi |  KSA | 53.61 PB | 0.184 | 
| 5 | 564 | Tomasz Baranowski |  POL | 53.85 | 0.156 | 
| 6 | 361 | Paul Jithin |  IND | 54.01 | 0.272 | 
| 7 | 615 | René Claudio |  PUR | 54.51 | 0.172 | 
| 8 | 736 | Yu-Te Chen |  TPE | 55.57 | 0.243 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 818 | Johnny Dutch |  USA | 52.21 Q | 0.207 | 
| 2 | 306 | David Gollnow |  GER | 52.34 Q | 0.154 | 
| 3 | 496 | Silvestras Guogis |  LTU | 52.48 Q PB | 0.165 | 
| 4 | 443 | Julius Rotich Oletygor |  KEN | 52.54 q | 0.185 | 
| 5 | 479 | Fahad Faraj |  KUW | 53.40 | 0.264 | 
| 6 | 787 | Oleksandr Korovka |  UKR | 53.94 | 0.190 | 
| 7 | 35 | Nejmi Burnside |  BAH | 55.21 | 0.154 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 129 | Amaurys R. Valle |  CUB | 51.67 Q PB | 0.191 | 
| 2 | 638 | Cornel Fredericks |  RSA | 51.96 Q | 0.144 | 
| 3 | 429 | Kohei Tamemoto |  JPN | 52.05 Q | 0.155 | 
| 4 | 649 | Nikita Andriyanov |  RUS | 52.14 q | 0.199 | 
| 5 | 752 | Emanuel Mayers |  TTO | 52.29 q | 0.219 | 
| 6 | 381 | Leslie Murray |  ISV | 52.64 q NJ | 0.165 | 
| 7 | 353 | Tibor KOROKNAI |  HUN | 53.33 | 0.134 | 
| 8 | 338 | Kenneth Karosich |  GUM | 58.36 | 0.178 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 585 | Michal Pietrzak |  POL | 51.89 Q PB | 0.157 | 
| 2 | 634 | PC Beneke |  RSA | 51.90 Q | 0.169 | 
| 3 | 847 | Artem Dyatlov |  UZB | 52.62 Q NJ | 0.235 | 
| 4 | 237 | Hugo Grillas |  FRA | 52.98 | 0.206 | 
| 5 | 284 | Nathan Woodward |  GBR | 53.42 | 0.165 | 
| 6 | 8 | Faysal Mehdioui |  ALG | 54.41 | 0.199 | 
| 7 | 362 | Shejil Verghese |  IND | 54.48 | 0.168 | 
| 8 | 119 | Fernando Semedo |  CPV | 1:01.09 PB | 0.203 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 396 | Giacomo Panizza |  ITA | 52.77 Q | 0.209 | 
| 2 | 468 | Adel Al-Nasser |  KSA | 52.84 Q PB | 0.179 | 
| 3 | 313 | Sebastian Knorr |  GER | 53.25 Q | 0.158 | 
| 4 | 5 | Lyes Bouzid |  ALG | 54.10 | 0.245 | 
| 5 | 39 | Jeffery Gibson |  BAH | 54.37 | 0.211 | 
| 6 | 744 | Yu-Fan Shih |  TPE | 55.43 | 0.162 | 
| 7 | 854 | Wilmer Valor |  VEN | 59.26 | 0.163 | 
| 414 | Andre Peart |  JAM | DNS | 0.000 |