| Date | Grandprix | Team | Winning Time | Leader Offset | Pos | Pts | Total |
| 10/03/1991 | United States | Williams | Retirement - Gearbox/Accident | 0 | 0 | ||
| 24/03/1991 | Brazil | Williams | 98:28.128 | +0.02.991 | 2 | 6 | 6 |
| 28/04/1991 | San Marino | Williams | Retirement - Engine | 0 | 6 | ||
| 12/05/1991 | Monaco | Williams | Retirement - Hit Modena's Oil | 0 | 6 | ||
| 02/06/1991 | Canada | Williams | 98:51.49 | +0.42.217 | 3 | 4 | 10 |
| 16/06/1991 | Mexican | Williams | 89:52.205 | 1 | 10 | 20 | |
| 07/07/1991 | France | Williams | 98:.056 | +1 lap | 5 | 2 | 22 |
| 14/07/1991 | Britain | Williams | Retirement - Accident With Berger | 0 | 22 | ||
| 28/07/1991 | Germany | Williams | 79:29.661 | +0.13.779 | 2 | 6 | 28 |
| 11/08/1991 | Hungary | Williams | 109:12.796 | +0.15.594 | 3 | 4 | 32 |
| 25/08/1991 | Belgium | Williams | 87:17.669 | +0.57.187 | 5 | 2 | 34 |
| 08/09/1991 | Italy | Williams | Retirement - Clutch | 0 | 34 | ||
| 22/09/1991 | Portugese | Williams | 95:42.304 | 1 | 10 | 44 | |
| 29/09/1991 | Spain | Williams | 98:41.541 | +0.15.909 | 3 | 4 | 48 |
| 20/10/1991 | Japan | Williams | 92:10.695 | +0.56.731 | 3 | 4 | 52 |
| 03/11/1991 | Australia | Williams | 24:34.889 | +0.50.547 | 5 | 1 | 53 |