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 | 1:35'42.304 | 1 | 1'13.001 | 2 | 1'18.350 | (38) | |
| 2 | 6 | 1 | Ayrton Senna (BRA) | McLaren MP4-6 | Honda RA121E | Goodyear | 71 | 1:36'03.245 | +20.941 | 3 | 1'13.444 | 4 | 1'18.929 | (50) |
| 3 | 4 | 28 | Jean Alesi (FRA) | Ferrari 643 | Ferrari 037 | Goodyear | 71 | 1:36'35.858 | +53.554 | 6 | 1'14.852 | 8 | 1'19.418 | (55) |
| 4 | 3 | 23 | Pierluigi Martini (ITA) | Minardi M191 | Ferrari 037 | Goodyear | 71 | 1:36'45.802 | +1'03.498 | 8 | 1'15.394 | 11 | 1'19.581 | (57) |
| 5 | 2 | 20 | Nelson Piquet (BRA) | Benetton B191 | Ford HB | Pirelli | 71 | 1:36'52.337 | +1'10.033 | 11 | 1'15.666 | 5 | 1'19.073 | (45) |
| 6 | 1 | 19 | Michael Schumacher (GER) | Benetton B191 | Ford HB | Pirelli | 71 | 1:36'58.886 | +1'16.582 | 10 | 1'15.578 | 6 | 1'19.206 | (68) |
| 7 | 15 | Mauricio Gugelmin (BRA) | Leyton House CG911 | Ilmor LH10 | Goodyear | 70 | 1:36'03.921 | +1 lap | 7 | 1'15.266 | 12 | 1'19.757 | (65) | |
| 8 | 33 | Andrea de Cesaris (ITA) | Jordan 191 | Ford HB | Goodyear | 70 | 1:36'04.106 | +1 lap | 14 | 1'15.936 | 7 | 1'19.210 | (48) | |
| 9 | 24 | Gianni Morbidelli (ITA) | Minardi M191 | Ferrari 037 | Goodyear | 70 | 1:36'17.000 | +1 lap | 13 | 1'15.749 | 16 | 1'20.357 | (56) | |
| 10 | 32 | Roberto Moreno (BRA) | Jordan 191 | Ford HB | Goodyear | 70 | 1:36'27.278 | +1 lap | 16 | 1'16.080 | 14 | 1'20.096 | (57) | |
| 11 | 26 | Erik Comas (FRA) | Ligier JS35B | Lamborghini 3512 | Goodyear | 70 | 1:37'04.866 | +1 lap | 23 | 1'17.226 | 20 | 1'20.781 | (43) | |
| 12 | 7 | Martin Brundle (GBR) | Brabham BT60Y | Yamaha OX99 | Pirelli | 69 | 1:36'08.974 | +2 laps | 19 | 1'16.536 | 18 | 1'20.480 | (27) | |
| 13 | 3 | Satoru Nakajima (JPN) | Tyrrell 020 | Honda RA101E | Pirelli | 68 | 1:35'43.453 | +3 laps | 21 | 1'16.926 | 22 | 1'21.966 | (41) | |
| 14 | 11 | Mika Häkkinen (FIN) | Team Lotus 102B | Judd EV | Goodyear | 68 | 1:35'44.445 | +3 laps | 26 | 1'17.714 | 17 | 1'20.445 | (35) | |
| 15 | 9 | Michele Alboreto (ITA) | Footwork FA12C | Ford Cosworth DFR | Goodyear | 68 | 1:35'48.391 | +3 laps | 24 | 1'17.330 | 13 | 1'20.082 | (60) | |
| 16 | 25 | Thierry Boutsen (BEL) | Ligier JS35B | Lamborghini 3512 | Goodyear | 68 | 1:36'31.572 | +3 laps | 20 | 1'16.757 | 19 | 1'20.700 | (38) | |
| 17 | 16 | Ivan Capelli (ITA) | Leyton House CG911 | Ilmor LH10 | Goodyear | 64 | 1:29'54.769 | +7 laps | 9 | 1'15.481 | 9 | 1'19.519 | (45) | |
| Retirement | ||||||||||||||
| engine | 4 | Stefano Modena (ITA) | Tyrrell 020 | Honda RA101E | Pirelli | 56 | 1:17'25.539 | 12 | 1'15.707 | 15 | 1'20.342 | (30) | ||
| transmission | 30 | Aguri Suzuki (JPN) | Lola 91 | Ford Cosworth DFR | Goodyear | 40 | 56'25.097 | 25 | 1'17.434 | 21 | 1'21.586 | (33) | ||
| engine | 27 | Alain Prost (FRA) | Ferrari 643 | Ferrari 037 | Goodyear | 39 | 53'16.230 | 5 | 1'14.352 | 10 | 1'19.531 | (33) | ||
| engine | 2 | Gerhard Berger (AUT) | McLaren MP4-6 | Honda RA121E | Goodyear | 37 | 50'28.327 | 2 | 1'13.221 | 3 | 1'18.856 | (36) | ||
| engine | 21 | Emanuele Pirro (ITA) | Dallara BMS-191 | Judd GV | Pirelli | 18 | 25'41.264 | 17 | 1'16.136 | 24 | 1'22.592 | (11) | ||
| gearbox | 22 | J J Lehto (FIN) | Dallara BMS-191 | Judd GV | Pirelli | 14 | 20'09.258 | 18 | 1'16.532 | 23 | 1'22.165 | (13) | ||
| suspension | 8 | Mark Blundell (GBR) | Brabham BT60Y | Yamaha OX99 | Pirelli | 12 | 17'01.493 | 15 | 1'16.038 | 25 | 1'22.801 | (12) | ||
| engine | 12 | Johnny Herbert (GBR) | Team Lotus 102B | Judd EV | Goodyear | 1 | 1'39.804 | 22 | 1'17.015 | 26 | 1'39.804 | (1) | ||
| Disqualified | ||||||||||||||
| -- | 5 | Nigel Mansell (GBR) | Williams FW14 | Renault RS3B | Goodyear | 51 | 1:10'12.370 | 4 | 1'13.667 | 1 | 1'18.179 | (36) | ||
| Not qualified | ||||||||||||||
| -- | 29 | Eric Bernard (FRA) | Lola 91 | Ford Cosworth DFR | Goodyear | 1'17.825 | ||||||||
| -- | 17 | Gabriele Tarquini (ITA) | AGS JH27 | Ford Cosworth DFR | Goodyear | 1'18.022 | ||||||||
| -- | 34 | Nicola Larini (ITA) | Lambo 291 | Lamborghini 3512 | Goodyear | 1'18.139 | ||||||||
| -- | 35 | Eric van de Poele (BEL) | Lambo 291 | Lamborghini 3512 | Goodyear | 1'18.266 | ||||||||
| Not pre-qualified | ||||||||||||||
| -- | 18 | Fabrizio Barbazza (ITA) | AGS JH27 | Ford Cosworth DFR | Goodyear | 1'19.292 | ||||||||
| -- | 14 | Olivier Grouillard (FRA) | Fondmetal Fomet-1 | Ford Cosworth DFR | Goodyear | 1'19.500 | ||||||||
| -- | 10 | Alex Caffi (ITA) | Footwork FA12C | Ford Cosworth DFR | Goodyear | 1'19.521 | ||||||||
| -- | 31 | Pedro Chaves (POR) | Coloni C4 | Ford Cosworth DFR | Goodyear | 1'23.858 | ||||||||
