| Race | Date | Laps led | ||
| 1 | ITA | 05/09/1971 | 23 | |
| 2 | CAN | 19/09/1971 | 13 | |
| 3 | CAN | 24/09/1972 | 3 | |
| 4 | ESP | 29/04/1973 | 56 | |
| 5 | BEL | 20/05/1973 | 1 | |
| 6 | MCO | 03/06/1973 | 6 | |
| 7 | SWE | 17/06/1973 | 78 | |
| 8 | FRA | 01/07/1973 | 13 | |
| 9 | GBR | 14/07/1973 | 38 | |
| 10 | NLD | 29/07/1973 | 63 | |
| 11 | AUT | 19/08/1973 | 22 | |
| 12 | ITA | 09/09/1973 | 55 | |
| 13 | CAN | 23/09/1973 | 2 | |
| 14 | USA | 07/10/1973 | 59 | |
| 15 | ARG | 13/01/1974 | 2 | |
| 16 | BRA | 27/01/1974 | 12 | |
| 17 | ESP | 28/04/1974 | 20 | |
| 18 | MCO | 26/05/1974 | 46 | |
| 19 | FRA | 07/07/1974 | 64 | |
| 20 | ITA | 08/09/1974 | 12 | |
| 21 | MCO | 11/05/1975 | 1 | |
| 22 | AUT | 15/08/1976 | 8 | |
| 23 | NLD | 29/08/1976 | 11 | |
| 24 | ITA | 12/09/1976 | 42 | |
| 25 | CAN | 03/10/1976 | 8 | |
| 26 | ZAF | 04/03/1978 | 1 | |
| 27 | DEU | 30/07/1978 | 4 | |
| 28 | AUT | 13/08/1978 | 44 |