| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 898 | Marek Plawgo |
POL
|
48.18 Q SB | 0.170 |
| 2 | 1091 | James Carter |
USA
|
48.30 Q | 0.166 |
| 3 | 720 | Danny McFarlane |
JAM
|
48.32 q SB | 0.159 |
| 4 | 1155 | Derrick Williams |
USA
|
48.43 q | 0.182 |
| 5 | 752 | Kenji Narisako |
JPN
|
48.44 SB | 0.179 |
| 6 | 558 | Fadil Bellaabouss |
FRA
|
49.17 PB | 0.193 |
| 7 | 675 | Joseph G. Abraham |
IND
|
49.51 NR | 0.151 |
| 8 | 763 | Yevgeniy Meleshenko |
KAZ
|
49.56 SB | 0.151 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 490 | Felix Sánchez |
DOM
|
48.35 Q SB | 0.169 |
| 2 | 654 | PeriklÃs Iakovákis |
GRE
|
48.44 Q | 0.166 |
| 3 | 1106 | Bershawn Jackson |
USA
|
48.95 | 0.132 |
| 4 | 952 | Aleksandr Derevyagin |
RUS
|
49.11 PB | 0.161 |
| 5 | 911 | Edivaldo Monteiro |
POR
|
49.31 SB | 0.146 |
| 6 | 934 | Pieter de Villiers |
RSA
|
49.37 | 0.173 |
| 7 | 914 | Javier Culson |
PUR
|
49.64 | 0.169 |
| 8 | 442 | Yan Meng |
CHN
|
49.70 | 0.155 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 1093 | Kerron Clement |
USA
|
48.60 Q | 0.183 |
| 2 | 426 | Adam Kunkel |
CAN
|
48.66 Q | 0.186 |
| 3 | 881 | Bayano Kamani |
PAN
|
49.13 | 0.191 |
| 4 | 722 | Isa Phillips |
JAM
|
49.47 | 0.198 |
| 5 | 368 | Jonathan Williams |
BIZ
|
49.77 | 0.205 |
| 6 | 692 | Gianni Carabelli |
ITA
|
50.35 | 0.187 |
| 7 | 835 | Ibrahim Maïga |
MLI
|
51.24 | 0.189 |
| 570 | Naman Keïta |
FRA
|
DQ | 0.221 |