| 🇦🇺Australian Grand Prix 1986 | 26 Oct 1986 | Zakspeed | 23 | Suspension | |
| 🇵🇹Portuguese Grand Prix 1986 | 21 Sept 1986 | Zakspeed | 26 | Transmission | |
| 🇮🇹Italian Grand Prix 1986 | 7 Sept 1986 | Zakspeed | 24 | Engine | |
| 🇦🇹Austrian Grand Prix 1986 | 17 Aug 1986 | Zakspeed | 24 | 8 | |
| 🇭🇺Hungarian Grand Prix 1986 | 10 Aug 1986 | Zakspeed | 25 | Radiator | |
| 🇩🇪German Grand Prix 1986 | 27 Jul 1986 | Zakspeed | 24 | Gearbox | |
| 🇬🇧British Grand Prix 1986 | 13 Jul 1986 | Zakspeed | 25 | Engine | |
| 🇫🇷French Grand Prix 1986 | 6 Jul 1986 | Zakspeed | 24 | Accident | |
| 🇺🇸Detroit Grand Prix 1986 | 22 Jun 1986 | Zakspeed | 26 | Electrical | |
| 🇨🇦Canadian Grand Prix 1986 | 15 Jun 1986 | Zakspeed | 24 | 12 | |
| 🇧🇪Belgian Grand Prix 1986 | 25 May 1986 | Zakspeed | 23 | Electrical | |
| 🇮🇹San Marino Grand Prix 1986 | 27 Apr 1986 | Zakspeed | 24 | Turbo | |
| 🇦🇺Australian Grand Prix 1985 | 3 Nov 1985 | Osella | 25 | 7 | |
| 🇿🇦South African Grand Prix 1985 | 19 Oct 1985 | Osella | 21 | Electrical | |
| 🇧🇪Belgian Grand Prix 1985 | 15 Sept 1985 | Osella | 23 | Not classified | |
| 🇮🇹Italian Grand Prix 1985 | 8 Sept 1985 | Osella | 22 | Engine | |
| 🇳🇱Dutch Grand Prix 1985 | 25 Aug 1985 | Osella | 26 | Not classified | |
| 🇦🇹Austrian Grand Prix 1985 | 18 Aug 1985 | Osella | 24 | 9 | |
| 🇩🇪German Grand Prix 1985 | 4 Aug 1985 | Osella | 25 | Gearbox | |
| 🇮🇹Italian Grand Prix 1984 | 9 Sept 1984 | Spirit | 25 | 8 | |
| 🇳🇱Dutch Grand Prix 1984 | 26 Aug 1984 | Spirit | 27 | Throttle | |
| 🇦🇹Austrian Grand Prix 1984 | 19 Aug 1984 | Spirit | 26 | Not classified | |
| 🇩🇪German Grand Prix 1984 | 5 Aug 1984 | Spirit | 24 | 9 | |
| 🇬🇧British Grand Prix 1984 | 22 Jul 1984 | Spirit | 22 | Not classified | |
| 🇺🇸Dallas Grand Prix 1984 | 8 Jul 1984 | Spirit | 23 | Fuel leak | |
| 🇨🇦Canadian Grand Prix 1984 | 17 Jun 1984 | Spirit | 24 | Not classified | |