| 24 | 1962 | Grand Prix du Mexique | Autosport Team W Seidel | Lotus | 24 | BRM | V8 | ab |
| 23 | 1962 | International Gold Cup | Autosport Team W Seidel | Lotus | 24 | BRM | V8 | f |
| 22 | 1962 | Grand Prix du Danemark | Autosport Team W Seidel | Lotus | 24 | BRM | V8 | 8 |
| 21 | 1962 | Grand Prix de la Méditerranée | Autosport Team W Seidel | Lotus | 24 | BRM | V8 | nc |
| 20 | 1962 | 200 miles d'Aintree | Autosport Team W Seidel | Porsche | 718 | Porsche | F4 | ab |
| 19 | 1962 | Glover Trophy | Autosport Team W Seidel | Porsche | 718 | Porsche | F4 | 10 |
| 18 | 1962 | Lavant Cup | Autosport Team W Seidel | Porsche | 718 | Porsche | F4 | 7 |
| 17 | 1962 | Lombank Trophy | Autosport Team W Seidel | Porsche | 718 | Porsche | F4 | 6 |
| 16 | 1962 | Grand Prix de Bruxelles | Autosport Team W Seidel | Porsche | 718 | Porsche | F4 | 7 |
| 15 | 1961 | International Gold Cup | Scuderia Colonia | Lotus | 18 | Climax | L 4 | 10 |
| 14 | 1961 | Flugplatzrennen | Scuderia Colonia | Lotus | 18 | Climax | L 4 | ab |
| 13 | 1961 | Grand Prix de Modène | Scuderia Colonia | Lotus | 18 | Climax | L 4 | nq |
| 12 | 1961 | Kanonloppet | Scuderia Colonia | Lotus | 18 | Climax | L 4 | f |
| 11 | 1961 | Grand Prix de Solitude | Scuderia Colonia | Lotus | 18 | Climax | L 4 | ab |
| 10 | 1961 | Silver City Trophy | Scuderia Colonia | Lotus | 18 | Climax | L 4 | ab |
| 9 | 1961 | London Trophy | Scuderia Colonia | Lotus | 18 | Climax | L 4 | 5 |
| 8 | 1961 | Grand Prix de Syracuse | Scuderia Colonia | Lotus | 18 | Climax | L 4 | nc |
| 7 | 1961 | Grand Prix de Vienne | Scuderia Colonia | Lotus | 18 | Climax | L 4 | 2 |
| 6 | 1961 | Grand Prix de Bruxelles | Scuderia Colonia | Lotus | 18 | Climax | L 4 | ab |
| 5 | 1961 | Grand Prix de Pau | Scuderia Colonia | Lotus | 18 | Climax | L 4 | ab |
| 4 | 1958 | International Trophy | Scuderia Centro Sud | Maserati | 250F | Maserati | L6 | 17 |
| 3 | 1958 | Grand Prix de Syracuse | Scuderia Centro Sud | Maserati | 250F | Maserati | L6 | ab |
| 2 | 1953 | Internationales Avusrennen | Privé | Veritas | RS | BMW | L4 | ab |
| 1 | 1953 | Internationales ADAC Eifelrennen | Autosport Team W Seidel | Veritas | RS | Veritas | L6 | 8 |