| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 553 | Piotr Kedzia | 
                                         
                                        POL
                                     | 
                                    47.51 Q | |
| 2 | 374 | Jermaine Gonzales | 
                                         
                                        JAM
                                     | 
                                    47.76 Q PB | |
| 3 | 122 | John Valoyes | 
                                         
                                        COL
                                     | 
                                    47.79 Q PB | |
| 4 | 241 | Ryan Preddy | 
                                         
                                        GBR
                                     | 
                                    47.80 q PB | |
| 5 | 285 | Georgios Zdragas | 
                                         
                                        GRE
                                     | 
                                    48.01 q | |
| 6 | 720 | Kellon Francis | 
                                         
                                        TTO
                                     | 
                                    48.45 | |
| 7 | 272 | Stefan Wittl | 
                                         
                                        GER
                                     | 
                                    48.86 | |
| 8 | 606 | Bonolo Maboa | 
                                         
                                        RSA
                                     | 
                                    49.26 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 551 | Karol Grzegorczyk | 
                                         
                                        POL
                                     | 
                                    47.95 Q | |
| 2 | 283 | DimÃtrios Grávalos | 
                                         
                                        GRE
                                     | 
                                    48.49 Q | |
| 3 | 377 | Kimani Williams | 
                                         
                                        JAM
                                     | 
                                    48.57 Q | |
| 4 | 793 | José Acevedo | 
                                         
                                        VEN
                                     | 
                                    48.76 | |
| 5 | 205 | David Testa | 
                                         
                                        ESP
                                     | 
                                    48.79 | |
| 6 | 389 | Daisuke Sakai | 
                                         
                                        JPN
                                     | 
                                    49.23 | |
| 7 | 300 | Oumar Bella Bah | 
                                         
                                        GUI
                                     | 
                                    49.62 | |
| 8 | 764 | Matthew Erickson | 
                                         
                                        USA
                                     | 
                                    49.67 |