| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | JAM | Jamaica |
JAM
|
41.84 Q WL | 0.151 |
| 2 | GBR | Great Britain & NI |
GBR
|
42.48 Q SB | 0.135 |
| 3 | CAN | Canada |
CAN
|
42.60 Q NR | 0.168 |
| 4 | CHN | PR of China |
CHN
|
43.18 | 0.165 |
| 5 | POL | Poland |
POL
|
43.20 SB | 0.159 |
| 6 | ITA | Italy |
ITA
|
43.22 SB | 0.160 |
| RUS | Russia |
RUS
|
DQ | 0.182 | |
| NGR | Nigeria |
NGR
|
DQ | 0.160 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | USA | United States |
USA
|
42.00 Q | 0.135 |
| 2 | TTO | Trinidad and Tobago |
TTO
|
42.24 Q NR | 0.149 |
| 3 | NED | Netherlands |
NED
|
42.32 Q NR | 0.158 |
| 4 | GER | Germany |
GER
|
42.64 q SB | 0.170 |
| 5 | BRA | Brazil |
BRA
|
43.15 | 0.172 |
| 6 | SUI | Switzerland |
SUI
|
43.38 | 0.144 |
| 7 | FRA | France |
FRA
|
43.58 SB | 0.143 |
| 8 | UKR | Ukraine |
UKR
|
43.59 | 0.133 |