F1 winners
Race winners
| # | Grand Prix | Circuit | Driver | Constructor | Start | Win margin |
|---|---|---|---|---|---|---|
| 1 | USA | Phoenix | (BRA) Ayrton Senna | McLaren-Honda | 1 | 16.332s |
| 2 | Brazil | Interlagos | (BRA) Ayrton Senna | McLaren-Honda | 1 | 2.991s |
| 3 | San Marino | Imola | (BRA) Ayrton Senna | McLaren-Honda | 1 | 1.675s |
| 4 | Monaco | Monte Carlo | (BRA) Ayrton Senna | McLaren-Honda | 1 | 18.348s |
| 5 | Canada | Montreal | (BRA) Nelson Piquet | Benetton-Ford Cosworth | 8 | 31.832s |
| 6 | Mexico | Mexico City | (ITA) Riccardo Patrese | Williams-Renault | 1 | 1.336s |
| 7 | France | Magny-Cours | (GBR) Nigel Mansell | Williams-Renault | 4 | 5.003s |
| 8 | Britain | Silverstone | (GBR) Nigel Mansell | Williams-Renault | 1 | 42.293s |
| 9 | Germany | Hockenheim | (GBR) Nigel Mansell | Williams-Renault | 1 | 13.779s |
| 10 | Hungary | Hungaroring | (BRA) Ayrton Senna | McLaren-Honda | 1 | 4.599s |
| 11 | Belgium | Spa-Francorchamps | (BRA) Ayrton Senna | McLaren-Honda | 1 | 1.901s |
| 12 | Italy | Monza | (GBR) Nigel Mansell | Williams-Renault | 2 | 16.262s |
| 13 | Portugal | Estoril | (ITA) Riccardo Patrese | Williams-Renault | 1 | 20.941s |
| 14 | Spain | Catalunya | (GBR) Nigel Mansell | Williams-Renault | 2 | 11.331s |
| 15 | Japan | Suzuka | (AUT) Gerhard Berger | McLaren-Honda | 1 | 0.344s |
| 16 | Australia | Adelaide | (BRA) Ayrton Senna | McLaren-Honda | 1 | 1.259s |
- First win (drivers)
- No driver won their first race in 1991
- Last win (drivers)
- Nelson Piquet
- First win (constructors)
- No constructor won their first race in 1991
- Last win (constructors)
- No constructor won their last race in 1991
- First win since…
- 1989 for Gerhard Berger
- First win by a…
- Austrian driver since 1989