| 11 | German Grand Prix | Iso-Marlboro-Ford | DNF | Suspension | ||
| 12 | Austrian Grand Prix | Iso-Marlboro-Ford | NC | |||
| 13 | Italian Grand Prix | Iso-Marlboro-Ford | DNF | Engine | ||
| 14 | Canadian Grand Prix | Iso-Marlboro-Ford | 15th | Puncture | ||
| 15 | United States Grand Prix | Iso-Marlboro-Ford | DNF | Engine | ||
| Championship: | 46th | |||||