| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 725 | William Wynne | 
                                         
                                        USA
                                     | 
                                    49.01 WY | 0.163 | 
| 2 | 724 | Reginald Wyatt | 
                                         
                                        USA
                                     | 
                                    50.33 PB | 0.196 | 
| 3 | 132 | Amaurys R. Valle | 
                                         
                                        CUB
                                     | 
                                    50.37 PB | 0.155 | 
| 4 | 40 | Nathan Arnett | 
                                         
                                        BAH
                                     | 
                                    50.89 PB | 0.195 | 
| 5 | 559 | Cornel Fredericks | 
                                         
                                        RSA
                                     | 
                                    51.04 | 0.137 | 
| 6 | 410 | Hamada Al-Bishi | 
                                         
                                        KSA
                                     | 
                                    51.64 PB | 0.172 | 
| 7 | 402 | Julius Rotich Oletygor | 
                                         
                                        KEN
                                     | 
                                    51.79 | 0.191 | 
| 8 | 553 | PC Beneke | 
                                         
                                        RSA
                                     | 
                                    51.93 | 0.141 |