| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|---|
| 1 | 1 | 1 | JAM | Jamaica |
JAM |
41.84 Q WL |
| 2 | 1 | 2 | USA | United States |
USA |
42.00 Q |
| 3 | 2 | 2 | TTO | Trinidad and Tobago |
TTO |
42.24 Q NR |
| 4 | 3 | 2 | NED | Netherlands |
NED |
42.32 Q NR |
| 5 | 2 | 1 | GBR | Great Britain & NI |
GBR |
42.48 Q SB |
| 6 | 3 | 1 | CAN | Canada |
CAN |
42.60 Q NR |
| 7 | 4 | 2 | GER | Germany |
GER |
42.64 q SB |
| 8 | 5 | 2 | BRA | Brazil |
BRA |
43.15 |
| 9 | 4 | 1 | CHN | PR of China |
CHN |
43.18 |
| 10 | 5 | 1 | POL | Poland |
POL |
43.20 SB |
| 11 | 6 | 1 | ITA | Italy |
ITA |
43.22 SB |
| 12 | 6 | 2 | SUI | Switzerland |
SUI |
43.38 |
| 13 | 7 | 2 | FRA | France |
FRA |
43.58 SB |
| 14 | 8 | 2 | UKR | Ukraine |
UKR |
43.59 |
| 1 | RUS | Russia |
RUS |
DQ | ||
| 1 | NGR | Nigeria |
NGR |
DQ |