| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 865 | Javier Culson |
PUR |
48.52 Q |
| 2 | 1 | 2 | 441 | David GREENE |
GBR |
48.62 Q |
| 3 | 1 | 3 | 1087 | Bershawn Jackson |
USA |
48.80 Q |
| 4 | 2 | 1 | 882 | Cornel Fredericks |
RSA |
48.83 Q |
| 5 | 3 | 1 | 1126 | Angelo Taylor |
USA |
48.86 q |
| 6 | 2 | 2 | 306 | Felix Sánchez |
DOM |
49.01 Q |
| 7 | 2 | 3 | 900 | L.J. van Zyl |
RSA |
49.05 Q |
| 8 | 3 | 3 | 906 | Aleksandr Derevyagin |
RUS |
49.07 q SB |
| 9 | 3 | 2 | 1010 | Jehue Gordon |
TTO |
49.08 |
| 10 | 4 | 2 | 599 | Isa Phillips |
JAM |
49.16 |
| 11 | 4 | 3 | 595 | Leford Green |
JAM |
49.29 |
| 12 | 4 | 1 | 1059 | Jeshua Anderson |
USA |
49.33 |
| 13 | 5 | 3 | 479 | Georg Fleischhauer |
GER |
49.36 |
| 14 | 6 | 3 | 465 | Nathan Woodward |
GBR |
49.57 |
| 15 | 5 | 1 | 440 | Jack Green |
GBR |
49.62 |
| 16 | 5 | 2 | 1058 | Andrés Silva |
URU |
49.63 |
| 17 | 7 | 3 | 657 | Vincent Kiplangat Kosgei |
KEN |
49.71 |
| 18 | 6 | 1 | 1051 | Stanislav Melnykov |
UKR |
49.74 |
| 19 | 6 | 2 | 954 | Emir Bekric |
SRB |
49.94 |
| 20 | 7 | 1 | 621 | Takayuki KISHIMOTO |
JPN |
50.05 |
| 21 | 8 | 3 | 277 | Omar Cisneros |
CUB |
50.10 |
| 22 | 8 | 1 | 603 | Josef Robertson |
JAM |
50.39 |
| 23 | 7 | 2 | 203 | Mahau SUGUIMATI |
BRA |
50.89 |
| 24 | 8 | 2 | 1070 | Kerron Clement |
USA |
52.11 |