September 22, 1991 Autódromo do Estoril | Lap distance 4.350 km
Photos (6) | Championship standings | 1991 season
| Pos | Points | No | Driver | Car | Engine | Tyres | Laps | Race Time | Delay | Qualifying | Fastest Lap | |||
| 1 | 10 | 6 | Riccardo Patrese (ITA) | Williams FW14 | Renault RS3B | Goodyear | 71 | 2.000000.304 | 1 | 3.000000.001 | 2 | 8.000000.350 | (38) | |
| 2 | 6 | 1 | Ayrton Senna (BRA) | McLaren MP4-6 | Honda RA121E | Goodyear | 71 | 3.000000.245 | +0.000 | 3 | 3.000000.444 | 4 | 8.000000.929 | (50) |
| 3 | 4 | 28 | Jean Alesi (FRA) | Ferrari 643 | Ferrari 037 | Goodyear | 71 | 5.000000.858 | +3.000000.554 | 6 | 4.000000.852 | 8 | 9.000000.418 | (55) |
| 4 | 3 | 23 | Pierluigi Martini (ITA) | Minardi M191 | Ferrari 037 | Goodyear | 71 | 5.000000.802 | +3.000000.498 | 8 | 5.000000.394 | 11 | 9.000000.581 | (57) |
| 5 | 2 | 20 | Nelson Piquet (BRA) | Benetton B191 | Ford HB | Pirelli | 71 | 2.000000.337 | +0.000 | 11 | 5.000000.666 | 5 | 9.000000.073 | (45) |
| 6 | 1 | 19 | Michael Schumacher (GER) | Benetton B191 | Ford HB | Pirelli | 71 | 8.000000.886 | +6.000000.582 | 10 | 5.000000.578 | 6 | 9.000000.206 | (68) |
| 7 | 15 | Mauricio Gugelmin (BRA) | Leyton House CG911 | Ilmor LH10 | Goodyear | 70 | 3.000000.921 | +1 lap | 7 | 5.000000.266 | 12 | 9.000000.757 | (65) | |
| 8 | 33 | Andrea de Cesaris (ITA) | Jordan 191 | Ford HB | Goodyear | 70 | 4.000000.106 | +1 lap | 14 | 5.000000.936 | 7 | 9.000000.210 | (48) | |
| 9 | 24 | Gianni Morbidelli (ITA) | Minardi M191 | Ferrari 037 | Goodyear | 70 | 7.000000.000 | +1 lap | 13 | 5.000000.749 | 16 | 0.000 | (56) | |
| 10 | 32 | Roberto Moreno (BRA) | Jordan 191 | Ford HB | Goodyear | 70 | 7.000000.278 | +1 lap | 16 | 6.000000.080 | 14 | 0.000 | (57) | |
| 11 | 26 | Erik Comas (FRA) | Ligier JS35B | Lamborghini 3512 | Goodyear | 70 | 4.000000.866 | +1 lap | 23 | 7.000000.226 | 20 | 0.000 | (43) | |
| 12 | 7 | Martin Brundle (GBR) | Brabham BT60Y | Yamaha OX99 | Pirelli | 69 | 8.000000.974 | +2 laps | 19 | 6.000000.536 | 18 | 0.000 | (27) | |
| 13 | 3 | Satoru Nakajima (JPN) | Tyrrell 020 | Honda RA101E | Pirelli | 68 | 3.000000.453 | +3 laps | 21 | 6.000000.926 | 22 | 1.000000.966 | (41) | |
| 14 | 11 | Mika Häkkinen (FIN) | Team Lotus 102B | Judd EV | Goodyear | 68 | 4.000000.445 | +3 laps | 26 | 7.000000.714 | 17 | 0.000 | (35) | |
| 15 | 9 | Michele Alboreto (ITA) | Footwork FA12C | Ford Cosworth DFR | Goodyear | 68 | 8.000000.391 | +3 laps | 24 | 7.000000.330 | 13 | 0.000 | (60) | |
| 16 | 25 | Thierry Boutsen (BEL) | Ligier JS35B | Lamborghini 3512 | Goodyear | 68 | 1.000000.572 | +3 laps | 20 | 6.000000.757 | 19 | 0.000 | (38) | |
| 17 | 16 | Ivan Capelli (ITA) | Leyton House CG911 | Ilmor LH10 | Goodyear | 64 | 4.000000.769 | +7 laps | 9 | 5.000000.481 | 9 | 9.000000.519 | (45) | |
| Retirement | ||||||||||||||
| engine | 4 | Stefano Modena (ITA) | Tyrrell 020 | Honda RA101E | Pirelli | 56 | 5.000000.539 | 12 | 5.000000.707 | 15 | 0.000 | (30) | ||
| transmission | 30 | Aguri Suzuki (JPN) | Lola 91 | Ford Cosworth DFR | Goodyear | 40 | 5.000000.097 | 25 | 7.000000.434 | 21 | 1.000000.586 | (33) | ||
| engine | 27 | Alain Prost (FRA) | Ferrari 643 | Ferrari 037 | Goodyear | 39 | 6.000000.230 | 5 | 4.000000.352 | 10 | 9.000000.531 | (33) | ||
| engine | 2 | Gerhard Berger (AUT) | McLaren MP4-6 | Honda RA121E | Goodyear | 37 | 8.000000.327 | 2 | 3.000000.221 | 3 | 8.000000.856 | (36) | ||
| engine | 21 | Emanuele Pirro (ITA) | Dallara BMS-191 | Judd GV | Pirelli | 18 | 1.000000.264 | 17 | 6.000000.136 | 24 | 2.000000.592 | (11) | ||
| gearbox | 22 | J J Lehto (FIN) | Dallara BMS-191 | Judd GV | Pirelli | 14 | 9.000000.258 | 18 | 6.000000.532 | 23 | 2.000000.165 | (13) | ||
| suspension | 8 | Mark Blundell (GBR) | Brabham BT60Y | Yamaha OX99 | Pirelli | 12 | 1.000000.493 | 15 | 6.000000.038 | 25 | 2.000000.801 | (12) | ||
| engine | 12 | Johnny Herbert (GBR) | Team Lotus 102B | Judd EV | Goodyear | 1 | 9.000000.804 | 22 | 7.000000.015 | 26 | 9.000000.804 | (1) | ||
| Disqualified | ||||||||||||||
| -- | 5 | Nigel Mansell (GBR) | Williams FW14 | Renault RS3B | Goodyear | 51 | 2.000000.370 | 4 | 3.000000.667 | 1 | 8.000000.179 | (36) | ||
| Not qualified | ||||||||||||||
| -- | 29 | Eric Bernard (FRA) | Lola 91 | Ford Cosworth DFR | Goodyear | 7.000000.825 | ||||||||
| -- | 17 | Gabriele Tarquini (ITA) | AGS JH27 | Ford Cosworth DFR | Goodyear | 8.000000.022 | ||||||||
| -- | 34 | Nicola Larini (ITA) | Lambo 291 | Lamborghini 3512 | Goodyear | 8.000000.139 | ||||||||
| -- | 35 | Eric van de Poele (BEL) | Lambo 291 | Lamborghini 3512 | Goodyear | 8.000000.266 | ||||||||
| Not pre-qualified | ||||||||||||||
| -- | 18 | Fabrizio Barbazza (ITA) | AGS JH27 | Ford Cosworth DFR | Goodyear | 9.000000.292 | ||||||||
| -- | 14 | Olivier Grouillard (FRA) | Fondmetal Fomet-1 | Ford Cosworth DFR | Goodyear | 9.000000.500 | ||||||||
| -- | 10 | Alex Caffi (ITA) | Footwork FA12C | Ford Cosworth DFR | Goodyear | 9.000000.521 | ||||||||
| -- | 31 | Pedro Chaves (POR) | Coloni C4 | Ford Cosworth DFR | Goodyear | 3.000000.858 | ||||||||
