| POS | Rank | Heat | ATHLETE | COUNTRY | RESULTS | 
|---|---|---|---|---|---|
| 1 | 1 | 4 | LuguelÃn Santos | 
 DOM                 | 
                47.11 | 
| 2 | 2 | 4 | Ruan Greyling | 
 RSA                 | 
                47.22 | 
| 3 | 3 | 4 | Alphas Leken Kishoyian | 
 KEN                 | 
                47.24 | 
| 4 | 4 | 4 | Sadam Suliman Koumi El Nour | 
 SUD                 | 
                47.32 | 
| 5 | 5 | 4 | Leandro de Araújo | 
 BRA                 | 
                47.59 | 
| 6 | 6 | 4 | Najee Glass | 
 USA                 | 
                47.65 | 
| 7 | 7 | 4 | Nikita Uglov | 
 RUS                 | 
                48.15 | 
| 8 | 1 | 3 | Marco Lorenzi | 
 ITA                 | 
                48.31 | 
| 9 | 2 | 3 | Shaquille Alleyne | 
 BAR                 | 
                48.35 | 
| 10 | 3 | 3 | Dongbaek Choi | 
 KOR                 | 
                48.42 | 
| 11 | 4 | 3 | Sebastian Wiszniewski | 
 POL                 | 
                48.45 | 
| 12 | 5 | 3 | Abdullah Abkar | 
 KSA                 | 
                48.51 | 
| 13 | 8 | 4 | Lukas Schmitz | 
 GER                 | 
                48.70 | 
| 14 | 6 | 3 | Golden Gunde | 
 MAW                 | 
                48.71 | 
| 15 | 7 | 3 | Simon Lawrence | 
 DMA                 | 
                49.26 | 
| 16 | 1 | 2 | Omar Ceesay | 
 GAM                 | 
                50.07 | 
| 17 | 2 | 2 | Luke Greco | 
 AUS                 | 
                50.76 | 
| 18 | 3 | 2 | Alfousseyni Tamboura | 
 MLI                 | 
                51.01 | 
| 19 | 1 | 1 | Emmanuel Djato | 
 CHA                 | 
                51.03 | 
| 20 | 2 | 1 | Yorghena Embole Mokulu | 
 COD                 | 
                51.24 | 
| 21 | 3 | 1 | David Armando Walter | 
 ISV                 | 
                52.50 | 
| 22 | 4 | 2 | Jalil Salmon | 
 ANT                 | 
                52.58 | 
| 23 | 5 | 2 | Julien Davy Edou | 
 GAB                 | 
                54.15 | 
| 24 | 4 | 1 | Michael Gaitan | 
 GUM                 | 
                55.20 | 
| 2 | Jimmy Thoronka | 
 SLE                 | 
                DQ | ||
| 1 | Daniel Rosen | 
 LCA                 | 
                DNS | ||
| 1 | Maima Moiya | 
 TUV                 | 
                DNS | ||
| 1 | Stanley Sipolo | 
 SOL                 | 
                DNS | ||
| 2 | Lennox Williams | 
 JAM                 | 
                DNS |