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| Race | Date | Driver | Team | Car | Tyre | Grid | Race | F.lap rank | |||
| 1 | BRA | 24/03/1991 | Riccardo Patrese | Williams | Williams FW14 | G | 2 | 2 | 7 | ||
| 2 | MCO | 12/05/1991 | Nigel Mansell | Williams | Williams FW14 | G | 5 | 2 | 2 | ||
| 3 | CAN | 02/06/1991 | Riccardo Patrese | Williams | Williams FW14 | G | 1 | 3 | 2 | ||
| 4 | MEX | 16/06/1991 | Nigel Mansell | Williams | Williams FW14 | G | 2 | 2 | 1 | ||
| 5 | MEX | 16/06/1991 | Riccardo Patrese | Williams | Williams FW14 | G | 1 | 1 | 2 | ||
| 6 | FRA | 07/07/1991 | Nigel Mansell | Williams | Williams FW14 | G | 4 | 1 | 1 | ||
| 7 | GBR | 14/07/1991 | Nigel Mansell | Williams | Williams FW14 | G | 1 | 1 | 1 | ||
| 8 | DEU | 28/07/1991 | Nigel Mansell | Williams | Williams FW14 | G | 1 | 1 | 2 | ||
| 9 | DEU | 28/07/1991 | Riccardo Patrese | Williams | Williams FW14 | G | 4 | 2 | 1 | ||
| 10 | HUN | 11/08/1991 | Nigel Mansell | Williams | Williams FW14 | G | 3 | 2 | 3 | ||
| 11 | HUN | 11/08/1991 | Riccardo Patrese | Williams | Williams FW14 | G | 2 | 3 | 4 | ||
| 12 | ITA | 08/09/1991 | Nigel Mansell | Williams | Williams FW14 | G | 2 | 1 | 4 | ||
| 13 | PRT | 22/09/1991 | Riccardo Patrese | Williams | Williams FW14 | G | 1 | 1 | 2 | ||
| 14 | ESP | 29/09/1991 | Nigel Mansell | Williams | Williams FW14 | G | 2 | 1 | 3 | ||
| 15 | ESP | 29/09/1991 | Riccardo Patrese | Williams | Williams FW14 | G | 4 | 3 | 1 | ||
| 16 | JPN | 20/10/1991 | Riccardo Patrese | Williams | Williams FW14 | G | 5 | 3 | 3 | ||
| 17 | AUS | 03/11/1991 | Nigel Mansell | Williams | Williams FW14 | G | 3 | 2 | 4 |