Grande Prémio de Portugal 1991
| Pos | No | Driver | Constructor | Laps | Time / Gap | Pts | Grid | |
|---|---|---|---|---|---|---|---|---|
| 1 | 6 | Riccardo Patrese | Williams | 71 | 1:35:42.304 | 10 | 1 | Pole |
| 2 | 1 | Ayrton Senna | McLaren | 71 | 1:36:03.245 | 6 | 3 | |
| 3 | 28 | Jean Alesi | Ferrari | 71 | 1:36:35.858 | 4 | 6 | |
| 4 | 23 | Pierluigi Martini | Minardi | 71 | 1:36:45.802 | 3 | 8 | |
| 5 | 20 | Nelson Piquet | Benetton | 71 | 1:36:52.337 | 2 | 11 | |
| 6 | 19 | Michael Schumacher | Benetton | 71 | 1:36:58.886 | 1 | 10 | |
| 7 | 15 | Maurício Gugelmin | Leyton House | 70 | +1 lap | — | 7 | |
| 8 | 33 | Andrea de Cesaris | Jordan | 70 | +1 lap | — | 14 | |
| 9 | 24 | Gianni Morbidelli | Minardi | 70 | +1 lap | — | 13 | |
| 10 | 32 | Roberto Moreno | Jordan | 70 | +1 lap | — | 16 | |
| 11 | 26 | Érik Comas | Ligier | 70 | +1 lap | — | 23 | |
| 12 | 7 | Martin Brundle | Brabham | 69 | +2 laps | — | 19 | |
| 13 | 3 | Satoru Nakajima | Tyrrell | 68 | +3 laps | — | 21 | |
| 14 | 11 | Mika Häkkinen | Lotus | 68 | +3 laps | — | 26 | |
| 15 | 9 | Michele Alboreto | Footwork | 68 | +3 laps | — | 24 | |
| 16 | 25 | Thierry Boutsen | Ligier | 68 | +3 laps | — | 20 | |
| 17 | 16 | Ivan Capelli | Leyton House | 64 | Front wing | — | 9 | |
| DNF | 4 | Stefano Modena | Tyrrell | 56 | Engine | — | 12 | |
| DNF | 30 | Aguri Suzuki | Lola | 40 | Transmission | — | 25 | |
| DNF | 27 | Alain Prost | Ferrari | 39 | Engine | — | 5 | |
| DNF | 2 | Gerhard Berger | McLaren | 37 | Engine | — | 2 | |
| DNF | 21 | Emanuele Pirro | Dallara | 18 | Engine | — | 17 | |
| DNF | 22 | JJ Lehto | Dallara | 14 | Gearbox | — | 18 | |
| DNF | 8 | Mark Blundell | Brabham | 12 | Suspension | — | 15 | |
| DNF | 12 | Johnny Herbert | Lotus | 1 | Engine | — | 22 | |
| DSQ | 5 | Nigel Mansell | Williams | 51 | Illegal pit stop | — | 4 | FL |
| DNQ | 29 | Éric Bernard | Lola | — | — | — | — | |
| DNQ | 17 | Gabriele Tarquini | AGS | — | — | — | — | |
| DNQ | 34 | Nicola Larini | Modena | — | — | — | — | |
| DNQ | 35 | Eric van de Poele | Modena | — | — | — | — | |
| DNPQ | 18 | Fabrizio Barbazza | AGS | — | — | — | — | |
| DNPQ | 14 | Olivier Grouillard | Fondmetal | — | — | — | — | |
| DNPQ | 10 | Alex Caffi | Footwork | — | — | — | — | |
| DNPQ | 31 | Pedro Chaves | Coloni | — | — | — | — |
| Pos | Driver | Constructor | Q1 | Q2 | Q3 | Time |
|---|---|---|---|---|---|---|
| 1 | Riccardo Patrese | Williams | — | — | — | 1:13.001 |
| 2 | Gerhard Berger | McLaren | — | — | — | 1:13.221 |
| 3 | Ayrton Senna | McLaren | — | — | — | 1:13.444 |
| 4 | Nigel Mansell | Williams | — | — | — | 1:13.667 |
| 5 | Alain Prost | Ferrari | — | — | — | 1:14.352 |
| 6 | Jean Alesi | Ferrari | — | — | — | 1:14.852 |
| 7 | Maurício Gugelmin | Leyton House | — | — | — | 1:15.266 |
| 8 | Pierluigi Martini | Minardi | — | — | — | 1:15.394 |
| 9 | Ivan Capelli | Leyton House | — | — | — | 1:15.481 |
| 10 | Michael Schumacher | Benetton | — | — | — | 1:15.578 |
| 11 | Nelson Piquet | Benetton | — | — | — | 1:15.666 |
| 12 | Stefano Modena | Tyrrell | — | — | — | 1:15.707 |
| 13 | Gianni Morbidelli | Minardi | — | — | — | 1:15.749 |
| 14 | Andrea de Cesaris | Jordan | — | — | — | 1:15.936 |
| 15 | Mark Blundell | Brabham | — | — | — | 1:16.038 |
| 16 | Roberto Moreno | Jordan | — | — | — | 1:16.080 |
| 17 | Emanuele Pirro | Dallara | — | — | — | 1:16.135 |
| 18 | JJ Lehto | Dallara | — | — | — | 1:16.532 |
| 19 | Martin Brundle | Brabham | — | — | — | 1:16.536 |
| 20 | Thierry Boutsen | Ligier | — | — | — | 1:16.757 |
| 21 | Satoru Nakajima | Tyrrell | — | — | — | 1:16.926 |
| 22 | Johnny Herbert | Lotus | — | — | — | 1:17.015 |
| 23 | Érik Comas | Ligier | — | — | — | 1:17.226 |
| 24 | Michele Alboreto | Footwork | — | — | — | 1:17.330 |
| 25 | Aguri Suzuki | Lola | — | — | — | 1:17.434 |
| 26 | Mika Häkkinen | Lotus | — | — | — | 1:17.714 |
| 27 | Éric Bernard | Lola | — | — | — | 1:17.825 |
| 28 | Gabriele Tarquini | AGS | — | — | — | 1:18.022 |
| 29 | Nicola Larini | Modena | — | — | — | 1:18.139 |
| 30 | Eric van de Poele | Modena | — | — | — | 1:18.266 |
| Grid | Driver | Constructor | Quali | Penalty |
|---|---|---|---|---|
| 1 | Riccardo Patrese | Williams | 1 | — |
| 2 | Gerhard Berger | McLaren | 2 | — |
| 3 | Ayrton Senna | McLaren | 3 | — |
| 4 | Nigel Mansell | Williams | 4 | — |
| 5 | Alain Prost | Ferrari | 5 | — |
| 6 | Jean Alesi | Ferrari | 6 | — |
| 7 | Maurício Gugelmin | Leyton House | 7 | — |
| 8 | Pierluigi Martini | Minardi | 8 | — |
| 9 | Ivan Capelli | Leyton House | 9 | — |
| 10 | Michael Schumacher | Benetton | 10 | — |
| 11 | Nelson Piquet | Benetton | 11 | — |
| 12 | Stefano Modena | Tyrrell | 12 | — |
| 13 | Gianni Morbidelli | Minardi | 13 | — |
| 14 | Andrea de Cesaris | Jordan | 14 | — |
| 15 | Mark Blundell | Brabham | 15 | — |
| 16 | Roberto Moreno | Jordan | 16 | — |
| 17 | Emanuele Pirro | Dallara | 17 | — |
| 18 | JJ Lehto | Dallara | 18 | — |
| 19 | Martin Brundle | Brabham | 19 | — |
| 20 | Thierry Boutsen | Ligier | 20 | — |
| 21 | Satoru Nakajima | Tyrrell | 21 | — |
| 22 | Johnny Herbert | Lotus | 22 | — |
| 23 | Érik Comas | Ligier | 23 | — |
| 24 | Michele Alboreto | Footwork | 24 | — |
| 25 | Aguri Suzuki | Lola | 25 | — |
| 26 | Mika Häkkinen | Lotus | 26 | — |
| # | Driver | Constructor | Lap | Time | Gap |
|---|---|---|---|---|---|
| 1 | Nigel Mansell | Williams | 36 | 1:18.179 | — |
| 2 | Riccardo Patrese | Williams | 38 | 1:18.350 | +0.171 |
| 3 | Gerhard Berger | McLaren | 36 | 1:18.856 | +0.677 |
| 4 | Ayrton Senna | McLaren | 50 | 1:18.929 | +0.750 |
| 5 | Nelson Piquet | Benetton | 45 | 1:19.073 | +0.894 |
| 6 | Michael Schumacher | Benetton | 68 | 1:19.206 | +1.027 |
| 7 | Andrea de Cesaris | Jordan | 48 | 1:19.210 | +1.031 |
| 8 | Jean Alesi | Ferrari | 55 | 1:19.418 | +1.239 |
| 9 | Ivan Capelli | Leyton House | 45 | 1:19.519 | +1.340 |
| 10 | Alain Prost | Ferrari | 33 | 1:19.531 | +1.352 |
Drivers after race
| Pos | Driver | Pts |
|---|---|---|
| 1 | Ayrton Senna | 83 |
| 2 | Nigel Mansell | 59 |
| 3 | Riccardo Patrese | 44 |
| 4 | Gerhard Berger | 31 |
| 5 | Nelson Piquet | 25 |
| 6 | Alain Prost | 25 |
| 7 | Jean Alesi | 18 |
| 8 | Stefano Modena | 9 |
| 9 | Andrea de Cesaris | 9 |
| 10 | Roberto Moreno | 8 |
| 11 | Pierluigi Martini | 6 |
| 12 | JJ Lehto | 4 |
| 13 | Bertrand Gachot | 4 |
| 14 | Michael Schumacher | 3 |
| 15 | Satoru Nakajima | 2 |
| 15 | Mika Häkkinen | 2 |
| 17 | Aguri Suzuki | 1 |
| 17 | Julian Bailey | 1 |
| 17 | Emanuele Pirro | 1 |
| 17 | Éric Bernard | 1 |