| Order / Lane | ATHLETE | COUNTRY | PB | SB 1983 | 
|---|---|---|---|---|
| Bert Cameron |  JAM | 45.48 | 45.48 | |
| Michael Franks |  USA | 45.44 | 45.44 | |
| Sunder Nix |  USA | 44.68 | 45.73 | |
| Michael Paul |  TTO | 45.83 | 45.83 | |
| Thomas Schönlebe |  GDR | 45.67 | 45.67 | |
| Erwin Skamrahl |  FRG | 44.50 | 44.50 | |
| Gerson A. Souza |  BRA | 45.63 | 45.63 | |
| Hartmut Weber |  FRG | 44.72 | 45.61 |