| 1 | Cayetano Cornet | ESP | 46,00 | Q |
| 2 | Jens Carlowitz | GDR | 46,21 | Q |
| 3 | Olivier Noirot | FRA | 46,73 | q |
| 4 | Carsten Köhrbrück | FRG | 46,81 | |
| 5 | Gary Cadogan | GBR | 47,28 |
| 1 | Thomas Schönlebe | GDR | 46,48 | Q |
| 2 | Norbert Dobeleit | FRG | 46,79 | Q |
| 3 | Klaus Just | FRG | 46,88 | |
| 4 | Todd Bennett | GBR | 47,23 | |
| 5 | Ervin Katona | HUN | 48,01 |