| Race | Date | Laps led | ||
| 1 | GBR | 13/05/1950 | 70 | |
| 2 | MCO | 21/05/1950 | 100 | |
| 3 | CHE | 04/06/1950 | 42 | |
| 4 | BEL | 18/06/1950 | 30 | |
| 5 | FRA | 02/07/1950 | 64 | |
| 6 | ITA | 03/09/1950 | 78 | |
| 7 | CHE | 27/05/1951 | 42 | |
| 8 | BEL | 17/06/1951 | 34 | |
| 9 | FRA | 01/07/1951 | 63 | |
| 10 | GBR | 14/07/1951 | 31 | |
| 11 | DEU | 29/07/1951 | 8 | |
| 12 | ITA | 16/09/1951 | 9 | |
| 13 | ESP | 28/10/1951 | 67 | |
| 14 | ARG | 09/01/1977 | 26 | |
| 15 | BRA | 23/01/1977 | 6 | |
| 16 | SWE | 19/06/1977 | 1 | |
| 17 | FRA | 03/07/1977 | 75 | |
| 18 | GBR | 17/07/1977 | 49 | |
| 19 | USA | 02/10/1977 | 14 | |
| 20 | MCO | 07/05/1978 | 37 | |
| 21 | SWE | 17/06/1978 | 32 | |
| 22 | GBR | 16/07/1978 | 26 | |
| 23 | USA | 05/10/1980 | 31 | |
| 24 | USW | 04/04/1982 | 14 | |
| 25 | BEL | 22/05/1983 | 18 |