| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 898 | Marek Plawgo |
POL |
48.18 Q SB |
| 2 | 2 | 1 | 1091 | James Carter |
USA |
48.30 Q |
| 3 | 3 | 1 | 720 | Danny McFarlane |
JAM |
48.32 q SB |
| 4 | 1 | 2 | 490 | Felix Sánchez |
DOM |
48.35 Q SB |
| 5 | 4 | 1 | 1155 | Derrick Williams |
USA |
48.43 q |
| 6 | 2 | 2 | 654 | PeriklÃs Iakovákis |
GRE |
48.44 Q |
| 7 | 5 | 1 | 752 | Kenji Narisako |
JPN |
48.44 SB |
| 8 | 1 | 3 | 1093 | Kerron Clement |
USA |
48.60 Q |
| 9 | 2 | 3 | 426 | Adam Kunkel |
CAN |
48.66 Q |
| 10 | 3 | 2 | 1106 | Bershawn Jackson |
USA |
48.95 |
| 11 | 4 | 2 | 952 | Aleksandr Derevyagin |
RUS |
49.11 PB |
| 12 | 3 | 3 | 881 | Bayano Kamani |
PAN |
49.13 |
| 13 | 3 | 570 | Naman Keïta |
FRA |
DQ | |
| 14 | 6 | 1 | 558 | Fadil Bellaabouss |
FRA |
49.17 PB |
| 15 | 5 | 2 | 911 | Edivaldo Monteiro |
POR |
49.31 SB |
| 16 | 6 | 2 | 934 | Pieter de Villiers |
RSA |
49.37 |
| 17 | 4 | 3 | 722 | Isa Phillips |
JAM |
49.47 |
| 18 | 7 | 1 | 675 | Joseph G. Abraham |
IND |
49.51 NR |
| 19 | 8 | 1 | 763 | Yevgeniy Meleshenko |
KAZ |
49.56 SB |
| 20 | 7 | 2 | 914 | Javier Culson |
PUR |
49.64 |
| 21 | 8 | 2 | 442 | Yan Meng |
CHN |
49.70 |
| 22 | 5 | 3 | 368 | Jonathan Williams |
BIZ |
49.77 |
| 23 | 6 | 3 | 692 | Gianni Carabelli |
ITA |
50.35 |
| 24 | 7 | 3 | 835 | Ibrahim Maïga |
MLI |
51.24 |