| Order / Lane | ATHLETE | COUNTRY | PB | SB 1983 | 
|---|---|---|---|---|
| Paiwa Bogela |  PNG | |||
| Meshak Munyoro |  KEN | |||
| Ian Newhouse |  CAN | |||
| Gary Oakes |  GBR | 49.11 | ||
| Andre Phillips |  USA | |||
| Rik Tommelein |  BEL | |||
| Aleksandr Yatsevich |  URS | 48.60 | 
| Order / Lane | ATHLETE | COUNTRY | PB | SB 1983 | 
|---|---|---|---|---|
| José Alonso |  ESP | |||
| Aleksandr Kharlov |  URS | 48.78 | 48.78 | |
| Sven Nylander |  SWE | |||
| Vladislav Pecen |  TCH | |||
| Peter Rwamuhanda |  UGA | |||
| István Takács |  HUN | 
| Order / Lane | ATHLETE | COUNTRY | SB 1983 | 
|---|---|---|---|
| Antonio Diaz Ferreira |  BRA | ||
| Thomas Futterknecht |  AUT | ||
| Ahmed Abdelhalim Ghanem |  EGY | ||
| David Lee |  USA | ||
| Karl Smith |  JAM | ||
| Stephen Sole |  GBR | ||
| Toma Tomov |  BUL | 
| Order / Lane | ATHLETE | COUNTRY | PB | SB 1983 | 
|---|---|---|---|---|
| Carlos Azulay |  ESP | 49.59 | 49.59 | |
| Krasimir Demirev |  BUL | 50.45 | ||
| Amadou Dia Ba |  SEN | |||
| Rok Kopitar |  YUG | 49.11 | ||
| Edwin Moses |  USA | 47.13 | 47.84 | |
| Daniel Ogidi |  NGR | |||
| Greg Rolle |  BAH | 49.46 | 49.46 | 
| Order / Lane | ATHLETE | COUNTRY | PB | SB 1983 | 
|---|---|---|---|---|
| David Charlton |  BAH | 51.8 | ||
| Ahmed Hamada |  BRN | |||
| Petter Hesselberg |  NOR | |||
| Franz Meier |  SUI | 50.00 | ||
| Harald Schmid |  FRG | 47.48 | ||
| Ryszard Szparak |  POL | |||
| Georgios Vamvakas |  GRE |