| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2013 | 
|---|---|---|---|---|---|
| 1 | 1116 | Kerron Clement | 
                             
                            USA
                         | 
                            47.24 | 48.06 | 
| 2 | 983 | Mamadou Kasse HANN | 
                             
                            SEN
                         | 
                            48.50 | 48.50 | 
| 3 | 1173 | Michael Tinsley | 
                             
                            USA
                         | 
                            47.91 | 47.96 | 
| 4 | 346 | Felix Sánchez | 
                             
                            DOM
                         | 
                            47.25 | 48.10 | 
| 5 | 311 | Omar Cisneros | 
                             
                            CUB
                         | 
                            47.93 | 47.93 | 
| 6 | 1051 | Jehue Gordon | 
                             
                            TTO
                         | 
                            47.96 | 48.00 | 
| 7 | 894 | Javier Culson | 
                             
                            PUR
                         | 
                            47.72 | 48.14 | 
| 8 | 997 | Emir Bekric | 
                             
                            SRB
                         | 
                            48.36 | 48.36 |