These are the official results of the Men's 400 metres event at the 1987 IAAF World Championships in

Rome, Italy , established_title = Founded , established_date = 753 BC , founder = King Romulus (Romulus and Remus, legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg ...

. There were a total number of 48 participating athletes, with six qualifying heats and the final held on Thursday 1987-09-03.

Medalists

Records

Existing records at the start of the event.

Final

Semifinals

*Held on Sunday 1987-09-01

Quarterfinals

*Held on Saturday 1987-08-31

Qualifying heats

*Held on Saturday 1987-08-30

References

Results
{{DEFAULTSORT:1987 World Championships In Athletics - Men's 400 Metres 400 metres at the World Athletics Championships