| 1965 | Sudafrica | Privato | 32 | Lotus | 20 | Ford | | npq |
| 1967 | Sudafrica | Scuderia Scribante | 19 | Brabham | BT11/22 | Climax | 8 | nc |
| 1968 | Sudafrica | Scuderia Scribante | 22 | Brabham | BT11/22 | Repco | 14 | ab |
| 1970 | Sudafrica | Scuderia Scribante | 25 | Lotus | 49C | Ford Cosworth | 13 | 12 |
| 1971 | Sudafrica | Motor Racing Developments Ltd | 15 | Brabham | BT33 | Ford Cosworth | 12 | ab |
| | Olanda | Gold Leaf Team Lotus | 12 | Lotus | 72D | Ford Cosworth | | f |
| | Gran Bretagna | Gold Leaf Team Lotus | 2 | Lotus | 72D | Ford Cosworth | 13 | ab |
| 1972 | Sudafrica | Scribante Lucky Strike Racing | 26 | Lotus | 72D | Ford Cosworth | 17 | ab |
| | Francia | Scribante Lucky Strike Racing | 29 | Lotus | 72D | Ford Cosworth | | nq |
| | Gran Bretagna | Scribante Lucky Strike Racing | 29 | Lotus | 72D | Ford Cosworth | 24 | ab |
| | Germania | Scribante Lucky Strike Racing | 29 | Lotus | 72D | Ford Cosworth | 26 | ab |
| 1973 | Sudafrica | Scribante Lucky Strike Racing | 25 | Lotus | 72D | Ford Cosworth | 13 | ab |
| 1974 | Sudafrica | Scribante Lucky Strike Racing | 23 | McLaren | M23 | Ford Cosworth | 20 | 19 |
| 1975 | Sudafrica | Lucky Strike Racing | 31 | McLaren | M23 | Ford Cosworth | 20 | 14 |