| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 818 | Johnny Dutch | 
                                         
                                        USA
                                     | 
                                    50.40 Q | 0.196 | 
| 2 | 129 | Amaurys R. Valle | 
                                         
                                        CUB
                                     | 
                                    51.17 Q | 0.176 | 
| 3 | 634 | PC Beneke | 
                                         
                                        RSA
                                     | 
                                    51.46 q | 0.157 | 
| 4 | 306 | David Gollnow | 
                                         
                                        GER
                                     | 
                                    51.48 q PB | 0.175 | 
| 5 | 429 | Kohei Tamemoto | 
                                         
                                        JPN
                                     | 
                                    51.89 | 0.190 | 
| 6 | 502 | Valdas Valintélis | 
                                         
                                        LTU
                                     | 
                                    52.07 PB | 0.218 | 
| 7 | 443 | Julius Rotich Oletygor | 
                                         
                                        KEN
                                     | 
                                    52.14 | 0.243 | 
| 8 | 752 | Emanuel Mayers | 
                                         
                                        TTO
                                     | 
                                    52.39 | 0.192 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 804 | Jeshua Anderson | 
                                         
                                        USA
                                     | 
                                    49.90 Q | 0.221 | 
| 2 | 380 | Taras Shtcherenko | 
                                         
                                        ISR
                                     | 
                                    51.60 Q | 0.203 | 
| 3 | 396 | Giacomo Panizza | 
                                         
                                        ITA
                                     | 
                                    51.73 | 0.240 | 
| 4 | 313 | Sebastian Knorr | 
                                         
                                        GER
                                     | 
                                    52.31 | 0.263 | 
| 5 | 381 | Leslie Murray | 
                                         
                                        ISV
                                     | 
                                    52.51 NJ | 0.162 | 
| 6 | 468 | Adel Al-Nasser | 
                                         
                                        KSA
                                     | 
                                    52.60 PB | 0.189 | 
| 7 | 44 | Shane BRATHWAITE | 
                                         
                                        BAR
                                     | 
                                    53.09 | 0.224 | 
| 649 | Nikita Andriyanov | 
                                         
                                        RUS
                                     | 
                                    DNS | 0.000 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 638 | Cornel Fredericks | 
                                         
                                        RSA
                                     | 
                                    51.11 Q | 0.217 | 
| 2 | 445 | John Kituu Wambua | 
                                         
                                        KEN
                                     | 
                                    51.51 Q SB | 0.188 | 
| 3 | 430 | Tomoharu Kino | 
                                         
                                        JPN
                                     | 
                                    51.96 | 0.164 | 
| 4 | 585 | Michal Pietrzak | 
                                         
                                        POL
                                     | 
                                    52.22 | 0.199 | 
| 5 | 749 | Jehue Gordon | 
                                         
                                        TTO
                                     | 
                                    52.26 | 0.173 | 
| 6 | 478 | Jasem Waleed Al-Mas | 
                                         
                                        KUW
                                     | 
                                    53.05 | 0.151 | 
| 7 | 496 | Silvestras Guogis | 
                                         
                                        LTU
                                     | 
                                    53.46 | 0.185 | 
| 847 | Artem Dyatlov | 
                                         
                                        UZB
                                     | 
                                    DQ | 0.185 |