| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Jamaica |
JAM
|
41.79 SB | 0.165 |
| 2 | Great Britain & NI |
GBR
|
41.93 | 0.133 |
| 3 | Canada |
CAN
|
42.70 SB | 0.141 |
| 4 | PR of China |
CHN
|
42.70 | 0.165 |
| 5 | Netherlands |
NED
|
42.88 | 0.177 |
| 6 | Poland |
POL
|
43.33 | 0.146 |
| 7 | Ghana |
GHA
|
43.37 | 0.134 |
| Ukraine |
UKR
|
DQ SB | 0.151 |
| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Germany |
GER
|
42.18 Q | 0.158 |
| 2 | Nigeria |
NGR
|
42.55 Q SB | 0.144 |
| 3 | Trinidad and Tobago |
TTO
|
42.62 Q SB | 0.149 |
| 4 | France |
FRA
|
43.07 | 0.141 |
| 5 | Switzerland |
SUI
|
43.12 | 0.165 |
| Brazil |
BRA
|
DQ R 163.2b | 0.160 | |
| Kazakhstan |
KAZ
|
DQ R 163.3a | 0.161 |
| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | United States |
USA
|
41.77 q SB | 0.146 |