| Date | 31 August 1972 |
|---|---|
| Location | Olympiastadion, Olympiapark, München |
| Pos | Lane | Competitor | NOC | Time (Automatic) | |||
|---|---|---|---|---|---|---|---|
| 1 | 3 | Christian Rudolph |  GDR | 50.00 | |||
| 2 | 5 | Ralph Mann |  USA | 50.18 | |||
| 3 | 2 | Rainer Schubert |  FRG | 50.23 | |||
| 4 | 1 | Ari Salin |  FIN | 50.45 | |||
| 5 | 7 | Jean-Pierre Perrinelle |  FRA | 51.81 | |||
| 6 | 4 | José Carvalho |  POR | 52.64 | |||
| 7 | 6 | Hassan Bergaoui |  TUN | 53.70 |
