| 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 |