| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | Great Britain & N.I. |  GBR | 43.06 | |
| 2 | Bulgaria |  BUL | 43.19 | |
| 3 | USSR |  URS | 43.51 | |
| 4 | Czechoslovakia |  TCH | 43.89 | |
| 5 | Federal Republic Germany |  FRG | 44.21 | |
| 6 | Italy |  ITA | 44.46 | |
| 7 | Finland |  FIN | 44.77 | |
| 8 | Denmark |  DEN | 45.04 | 
| POS | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|
| 1 | German Democratic Republic |  GDR | 42.59 | |
| 2 | Jamaica |  JAM | 43.10 | |
| 3 | France |  FRA | 43.52 | |
| 4 | Canada |  CAN | 44.19 | |
| 5 | United States |  USA | 44.20 | |
| 6 | Bahamas |  BAH | 44.76 | |
| 7 | Ghana |  GHA | 47.51 |