Autódromo José Carlos Pace · 24 March 1991
Ayrton Senna won the 1991 Brazilian Grand Prix for McLaren from 1st on the grid, 2.991s ahead of Riccardo Patrese. Martin Brundle gained the most places, from 26th on the grid to 12th.
| Pos | Team | Points Breakdown | Pts | |
|---|---|---|---|---|
| 1 | McLaren Senna 10 + Berger 4 | Senna 10 + Berger 4 | 14 | |
| 2 | Williams Patrese 6 + Mansell 0 | Patrese 6 + Mansell 0 | 6 | |
| 3 | Ferrari Prost 3 + Alesi 1 | Prost 3 + Alesi 1 | 4 | |
| 4 | Benetton Piquet 2 + Moreno 0 | Piquet 2 + Moreno 0 | 2 | |
| 5 | Minardi Morbidelli 0 + Martini 0 | Morbidelli 0 + Martini 0 | 0 | |
| 6 | Team Lotus Häkkinen 0 | Häkkinen 0 | 0 | |
| 7 | Ligier Boutsen 0 + Comas 0 | Boutsen 0 + Comas 0 | 0 | |
| 8 | Dallara Pirro 0 + Järvilehto 0 | Pirro 0 + Järvilehto 0 | 0 | |
| 9 | Brabham Brundle 0 + Blundell 0 | Brundle 0 + Blundell 0 | 0 | |
| 10 | Jordan Gachot 0 + de Cesaris 0 | Gachot 0 + de Cesaris 0 | 0 | |
| 11 | Lola Bernard 0 + Suzuki 0 | Bernard 0 + Suzuki 0 | 0 | |
| 12 | Tyrrell Modena 0 + Nakajima 0 | Modena 0 + Nakajima 0 | 0 | |
| 13 | Leyton House Capelli 0 + Gugelmin 0 | Capelli 0 + Gugelmin 0 | 0 | |
| 14 | AGS Tarquini 0 | Tarquini 0 | 0 |
| Pos | Driver | Team | Race time / Gap | Laps | Stops | Pts | |
|---|---|---|---|---|---|---|---|
| 1 | Ayrton Senna McLaren | McLaren | 1:38:28.128 | 71 | — | 10 | |
| 2 | Riccardo Patrese Williams | Williams | +2.991s | 71 | — | 6 | |
| 3 | Gerhard Berger McLaren | McLaren | +5.416s | 71 | — | 4 | |
| 4 | Alain Prost Ferrari | Ferrari | +18.369s | 71 | — | 3 | |
| 5 | Nelson Piquet Benetton | Benetton | +21.960s | 71 | — | 2 | |
| 6 | Jean Alesi Ferrari | Ferrari | +23.641s | 71 | — | 1 | |
| 7 | Roberto Moreno Benetton | Benetton | +1 Lap | 70 | — | — | |
| 8 | Gianni Morbidelli Minardi | Minardi | +2 Laps | 69 | — | — | |
| 9 | Mika Häkkinen Team Lotus | Team Lotus | +3 Laps | 68 | — | — | |
| 10 | Thierry Boutsen Ligier | Ligier | +3 Laps | 68 | — | — | |
| 11 | Emanuele Pirro Dallara | Dallara | +3 Laps | 68 | — | — | |
| 12 | Martin Brundle Brabham | Brabham | +4 Laps | 67 | — | — | |
| 13 | Bertrand Gachot Jordan | Jordan | DNF Fuel system | 63 | — | — | |
| DNF | Nigel Mansell Williams | Williams | DNF Gearbox | 59 | — | — | |
| DNF | Érik Comas Ligier | Ligier | DNF Engine | 50 | — | — | |
| DNF | Pierluigi Martini Minardi | Minardi | DNF Spun off | 47 | — | — | |
| DNF | Mark Blundell Brabham | Brabham | DNF Engine | 34 | — | — | |
| DNF | Éric Bernard Lola | Lola | DNF Radiator | 33 | — | — | |
| DNF | Jyrki Järvilehto Dallara | Dallara | DNF Electrical | 22 | — | — | |
| DNF | Andrea de Cesaris Jordan | Jordan | DNF Engine | 20 | — | — | |
| DNF | Stefano Modena Tyrrell | Tyrrell | DNF Gearbox | 19 | — | — | |
| DNF | Ivan Capelli Leyton House | Leyton House | DNF Transmission | 16 | — | — | |
| DNF | Satoru Nakajima Tyrrell | Tyrrell | DNF Spun off | 12 | — | — | |
| DNF | Maurício Gugelmin Leyton House | Leyton House | DNF Physical | 9 | — | — | |
| DNF | Gabriele Tarquini AGS | AGS | DNF Suspension | 0 | — | — | |
| DNF | Aguri Suzuki Lola | Lola | DNF Fuel pump | 0 | — | — |