| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 3044 | Lalonde Gordon |
TTO |
44.58 Q PB |
| 2 | 1 | 2 | 2005 | Kirani JAMES |
GRN |
44.59 Q SB |
| 3 | 2 | 2 | 1100 | Chris Brown |
BAH |
44.67 Q SB |
| 4 | 1 | 3 | 1564 | Luguelín SANTOS |
DOM |
44.78 Q |
| 5 | 2 | 3 | 1133 | Kévin BORLÉE |
BEL |
44.84 Q |
| 6 | 2 | 1 | 1108 | Demetrius Pinder |
BAH |
44.94 Q |
| 7 | 3 | 1 | 1060 | Steven SOLOMON |
AUS |
44.97 q PB |
| 8 | 3 | 2 | 1132 | Jonathan BORLÉE |
BEL |
44.99 q |
| 9 | 3 | 3 | 3241 | Bryshon Nellum |
USA |
45.02 |
| 10 | 4 | 3 | 1105 | Ramon Miller |
BAH |
45.11 |
| 11 | 4 | 1 | 2968 | Rabah YOUSIF |
SUD |
45.13 =PB |
| 12 | 5 | 1 | 1519 | Pavel MASLÁK |
CZE |
45.15 |
| 13 | 6 | 1 | 2124 | Tabarie Henry |
ISV |
45.19 SB |
| 14 | 4 | 2 | 3235 | Tony MCQUAY |
USA |
45.31 |
| 14 | 5 | 3 | 1831 | Martyn ROONEY |
GBR |
45.31 |
| 16 | 7 | 1 | 2835 | Pavel Trenikhin |
RUS |
45.35 |
| 17 | 8 | 1 | 1842 | Conrad Williams |
GBR |
45.53 |
| 18 | 6 | 3 | 2177 | Dane Hyatt |
JAM |
45.59 |
| 19 | 5 | 2 | 1816 | Nigel Levine |
GBR |
45.64 |
| 20 | 7 | 3 | 2374 | Youssef Ahmed MASRAHI |
KSA |
45.91 |
| 21 | 6 | 2 | 3345 | Alberth Bravo |
VEN |
46.22 |
| 22 | 7 | 2 | 2790 | Oscar Pistorius |
RSA |
46.54 |
| 23 | 8 | 3 | 2078 | Liemarvin BONEVACIA |
IOA |
1:36.42 |
| 2 | 2806 | Maksim Dyldin |
RUS |
DQ |