1 | 1960 | Dutch Grand Prix | 9 | 4 | Team Lotus | Lotus 18 | Climax 2.5 L4 | 3 | 2 |
2 | 1960 | British Grand Prix | 12 | 7 | Team Lotus | Lotus 18 | Climax 2.5 L4 | 5 | 3 |
3 | 1960 | United States Grand Prix | 14 | 10 | Team Lotus | Lotus 18 | Climax 2.5 L4 | 7 | 2 |
4 | 1961 | United States Grand Prix | 20 | 15 | Team Lotus | Lotus 21 | Climax 1.5 L4 | 8 | 1 |