1 | 1963 | United States Grand Prix | 24 | Scuderia Ferrari SpA SEFAC | Ferrari 156/63 | Ferrari 1.5 V6 | 9 | 5 |
2 | 1964 | United States Grand Prix | 8 | Scuderia Ferrari | Ferrari 1512 | Ferrari 1.5 V8 | 8 | DNF |
3 | 1965 | United States Grand Prix | 2 | Scuderia Ferrari SpA SEFAC | Ferrari 1512 | Ferrari 1.5 F12 | 5 | 4 |
4 | 1966 | United States Grand Prix | 9 | Scuderia Ferrari SpA SEFAC | Ferrari 312 | Ferrari 3.0 V12 | 3 | DNF |