| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 1093 | Kerron Clement |
USA
|
47.61 WL | 0.169 |
| 2 | 490 | Felix Sánchez |
DOM
|
48.01 SB | 0.164 |
| 3 | 898 | Marek Plawgo |
POL
|
48.12 NR | 0.157 |
| 4 | 1091 | James Carter |
USA
|
48.40 | 0.152 |
| 5 | 720 | Danny McFarlane |
JAM
|
48.59 | 0.172 |
| 6 | 654 | PeriklÃs Iakovákis |
GRE
|
49.25 | 0.154 |
| 7 | 1155 | Derrick Williams |
USA
|
52.97 | 0.159 |
| 426 | Adam Kunkel |
CAN
|
DNF | 0.181 |