1991 Portuguese Grand Prix
Grand Prix
| Position | Driver Number | Driver | Constructor | Laps | Time | Grid | Points |
|---|---|---|---|---|---|---|---|
| 1 | 6 |  Riccardo Patrese |
Williams-Renault | 71 | 1:35:42.304 | 1 | 10 |
| 2 | 1 |  Ayrton Senna |
McLaren-Honda | 71 | + 20.941 | 3 | 6 |
| 3 | 28 |  Jean Alesi |
Ferrari | 71 | + 53.554 | 6 | 4 |
| 4 | 23 | Pierluigi Martini |
Minardi-Ferrari | 71 | + 1:03.498 | 8 | 3 |
| 5 | 20 | Nelson Piquet |
Benetton-Ford | 71 | + 1:10.033 | 11 | 2 |
| 6 | 19 |  Michael Schumacher |
Benetton-Ford | 71 | + 1:16.582 | 10 | 1 |
| 7 | 15 | Maurício Gugelmin |
Leyton House-Ilmor | 70 | + 1 lap | 7 | |
| 8 | 33 | Andrea de Cesaris |
Jordan-Ford | 70 | + 1 lap | 14 | |
| 9 | 24 | Gianni Morbidelli |
Minardi-Ferrari | 70 | + 1 lap | 13 | |
| 10 | 32 | Roberto Moreno |
Jordan-Ford | 70 | + 1 lap | 16 | |
| 11 | 26 | Érik Comas |
Ligier-Lamborghini | 70 | + 1 lap | 23 | |
| 12 | 7 |  Martin Brundle |
Brabham-Yamaha | 69 | + 2 laps | 19 | |
| 13 | 3 |  Satoru Nakajima |
Tyrrell-Honda | 68 | + 3 laps | 21 | |
| 14 | 11 |  Mika Häkkinen |
Lotus-Judd | 68 | + 3 laps | 26 | |
| 15 | 9 | Michele Alboreto |
Footwork-Ford | 68 | + 3 laps | 24 | |
| 16 | 25 |  Thierry Boutsen |
Ligier-Lamborghini | 68 | + 3 laps | 20 | |
| 17 | 16 | Ivan Capelli |
Leyton House-Ilmor | 64 | Front wing | 9 |
Qualifying
| Position | Driver Number | Driver | Constructor | Q1 | Q2 | Q3 | Grid |
|---|---|---|---|---|---|---|---|
| 1 | 6 | Riccardo Patrese |
Williams-Renault | 1:14.041 | 1:13.001 | — | undefined |
| 2 | 2 |  Gerhard Berger |
McLaren-Honda | 1:13.221 | 1:13.430 | +0.220 | undefined |
| 3 | 1 | Ayrton Senna |
McLaren-Honda | 1:13.752 | 1:13.444 | +0.443 | undefined |
| 4 | 5 | Nigel Mansell |
Williams-Renault | 1:13.944 | 1:13.667 | +0.666 | undefined |
| 5 | 27 | Alain Prost |
Ferrari | 1:15.018 | 1:14.352 | +1.351 | undefined |
| 6 | 28 | Jean Alesi |
Ferrari | 1:15.572 | 1:14.852 | +1.851 | undefined |
| 7 | 15 | Maurício Gugelmin |
Leyton House-Ilmor | 1:17.214 | 1:15.266 | +2.265 | undefined |
| 8 | 23 | Pierluigi Martini |
Minardi-Ferrari | 1:15.394 | 1:16.982 | +2.393 | undefined |
| 9 | 16 | Ivan Capelli |
Leyton House-Ilmor | 1:15.481 | 1:15.827 | +2.480 | undefined |
| 10 | 19 | Michael Schumacher |
Benetton-Ford | 1:16.477 | 1:15.578 | +2.577 | undefined |
| 11 | 20 | Nelson Piquet |
Benetton-Ford | 1:16.241 | 1:15.666 | +2.665 | undefined |
| 12 | 4 | Stefano Modena |
Tyrrell-Honda | 1:16.018 | 1:15.707 | +2.706 | undefined |
| 13 | 24 | Gianni Morbidelli |
Minardi-Ferrari | 1:16.540 | 1:15.749 | +2.748 | undefined |
| 14 | 33 | Andrea de Cesaris |
Jordan-Ford | 1:15.972 | 1:15.936 | +2.935 | undefined |
| 15 | 8 | Mark Blundell |
Brabham-Yamaha | 1:16.567 | 1:16.038 | +3.037 | undefined |
| 16 | 32 | Roberto Moreno |
Jordan-Ford | 1:16.956 | 1:16.080 | +3.079 | undefined |
| 17 | 21 | Emanuele Pirro |
Dallara-Judd | 1:16.725 | 1:16.135 | +3.134 | undefined |
| 18 | 22 | JJ Lehto |
Dallara-Judd | 1:16.724 | 1:16.532 | +3.531 | undefined |
| 19 | 7 | Martin Brundle |
Brabham-Yamaha | 1:17.298 | 1:16.536 | +3.535 | undefined |
| 20 | 25 | Thierry Boutsen |
Ligier-Lamborghini | 1:18.005 | 1:16.757 | +3.756 | undefined |
| 21 | 3 | Satoru Nakajima |
Tyrrell-Honda | 1:16.926 | 1:17.035 | +3.925 | undefined |
| 22 | 12 | Johnny Herbert |
Lotus-Judd | 1:17.713 | 1:17.015 | +4.014 | undefined |
| 23 | 26 | Érik Comas |
Ligier-Lamborghini | 1:18.192 | 1:17.226 | +4.225 | undefined |
| 24 | 9 | Michele Alboreto |
Footwork-Ford | 1:18.389 | 1:17.330 | +4.329 | undefined |
| 25 | 30 | Aguri Suzuki |
Lola-Ford | 1:17.434 | 1:17.537 | +4.433 | undefined |
| 26 | 11 | Mika Häkkinen |
Lotus-Judd | 1:18.947 | 1:17.714 | +4.713 | undefined |
| 27 | 29 | Éric Bernard |
Lola-Ford | 1:18.186 | 1:17.825 | +4.824 | undefined |
| 28 | 17 | Gabriele Tarquini |
AGS-Ford | 1:18.295 | 1:18.022 | +5.021 | undefined |
| 29 | 34 | Nicola Larini |
Lambo-Lamborghini | 1:21.612 | 1:18.139 | +5.138 | undefined |
| 30 | 35 | Eric van de Poele |
Lambo-Lamborghini | 1:20.411 | 1:18.266 | +5.265 | undefined |