| 🇨🇦Canadian Grand Prix 1978 | 8 Oct 1978 | Williams | 5 | 9 | |
| 🇺🇸United States Grand Prix 1978 | 1 Oct 1978 | Williams | 3 | 2 | 6 |
| 🇮🇹Italian Grand Prix 1978 | 10 Sept 1978 | Williams | 6 | 13 | |
| 🇳🇱Dutch Grand Prix 1978 | 27 Aug 1978 | Williams | 11 | Throttle | |
| 🇦🇹Austrian Grand Prix 1978 | 13 Aug 1978 | Williams | 15 | Accident | |
| 🇩🇪German Grand Prix 1978 | 30 Jul 1978 | Williams | 6 | Fuel system | |
| 🇬🇧British Grand Prix 1978 | 16 Jul 1978 | Williams | 6 | Transmission | |
| 🇫🇷French Grand Prix 1978 | 2 Jul 1978 | Williams | 14 | 5 | 2 |
| 🇸🇪Swedish Grand Prix 1978 | 17 Jun 1978 | Williams | 9 | Wheel | |
| 🇪🇸Spanish Grand Prix 1978 | 4 Jun 1978 | Williams | 18 | 8 | |
| 🇧🇪Belgian Grand Prix 1978 | 21 May 1978 | Williams | 11 | 10 | |
| 🇲🇨Monaco Grand Prix 1978 | 7 May 1978 | Williams | 10 | Oil leak | |
| 🇺🇸United States Grand Prix West 1978 | 2 Apr 1978 | Williams | 8 | 7 | |
| 🇿🇦South African Grand Prix 1978 | 4 Mar 1978 | Williams | 18 | 4 | 3 |
| 🇧🇷Brazilian Grand Prix 1978 | 29 Jan 1978 | Williams | 8 | 11 | |
| 🇦🇷Argentine Grand Prix 1978 | 15 Jan 1978 | Williams | 14 | Fuel system | |