| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Bershawn Jackson |
USA
|
49.20 Q | 0.157 |
| 2 | Pieter de Villiers |
RSA
|
49.24 Q | 0.202 |
| 3 | Mahau SUGUIMATI |
BRA
|
49.45 Q | 0.170 |
| 4 | Jonathan Williams |
BIZ
|
49.61 q | 0.175 |
| 5 | Kenji Narisako |
JPN
|
49.63 | 0.163 |
| 6 | Edivaldo Monteiro |
POR
|
49.89 SB | 0.160 |
| 7 | Harouna Garba |
NIG
|
55.14 | 0.291 |
| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Angelo Taylor |
USA
|
48.67 Q | 0.158 |
| 2 | Danny McFarlane |
JAM
|
48.86 Q | 0.179 |
| 3 | Alwyn Myburgh |
RSA
|
48.92 Q SB | 0.148 |
| 4 | Bayano Kamani |
PAN
|
49.05 q SB | 0.174 |
| 5 | Aleksandr Derevyagin |
RUS
|
49.19 q | 0.187 |
| 6 | Ibrahim Maïga |
MLI
|
50.57 | 0.229 |
| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Markino Buckley |
JAM
|
48.65 Q PB | 0.196 |
| 2 | L.J. van Zyl |
RSA
|
48.86 Q | 0.179 |
| 3 | Marek Plawgo |
POL
|
49.17 Q | 0.169 |
| 4 | Javier Culson |
PUR
|
49.60 q | 0.246 |
| 5 | Yan Meng |
CHN
|
49.73 SB | 0.168 |
| 6 | Aleksey Pogorelov |
KGZ
|
51.47 | 0.200 |
| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Kerron Clement |
USA
|
49.42 Q | 0.240 |
| 2 | PeriklÃs Iakovákis |
GRE
|
49.50 Q | 0.178 |
| 3 | Isa Phillips |
JAM
|
49.55 Q | 0.225 |
| 4 | Dai Tamesue |
JPN
|
49.82 | 0.214 |
| 5 | Felix Sánchez |
DOM
|
51.10 | 0.184 |
| 6 | Mowen Boino |
PNG
|
51.47 SB | 0.250 |
| Yevgeniy Meleshenko |
KAZ
|
DNF | 0.272 |