1 | 1967 | South African Grand Prix | 12 | Rob Walker/Jack Durlacher Racing | Cooper T81 | Maserati 3.0 V12 | 16 | DNF |
2 | 1968 | South African Grand Prix | 19 | Rob Walker/Jack Durlacher Racing | Cooper T81 | Maserati 3.0 V12 | 16 | 7 |
3 | 1969 | South African Grand Prix | 4 | Rob Walker/Jack Durlacher Racing | Lotus 49B | Ford Cosworth Cosworth DFV | 12 | 4 |
4 | 1970 | South African Grand Prix | 16 | March Engineering | March 701 | Ford Cosworth Cosworth DFV | 9 | 10 |
5 | 1971 | South African Grand Prix | 17 | Yardley Team BRM | BRM P153 | BRM P142-60 | 16 | DNF |