1991 - Portuguese Grand Prix
Date : 22 September 1991
Hour : Z
Round : 13
Circuit : Autódromo do Estoril
Locality : Estoril
Winner : Riccardo Patrese(Williams)
Polesitter : Riccardo Patrese(Williams)
Fastest lap : Alex Caffi(Footwork)
| P. | Driver | Constructor | Q1 | Q2 | Q3 |
|---|---|---|---|---|---|
| No record found. | |||||
| P. | Driver | Constructor |
|---|---|---|
| 1 | Riccardo Patrese | Williams |
| 2 | Gerhard Berger | McLaren |
| 3 | Ayrton Senna | McLaren |
| 4 | Nigel Mansell | Williams |
| 5 | Alain Prost | Ferrari |
| 6 | Jean Alesi | Ferrari |
| 7 | Maurício Gugelmin | Leyton House |
| 8 | Pierluigi Martini | Minardi |
| 9 | Ivan Capelli | Leyton House |
| 10 | Michael Schumacher | Benetton |
| 11 | Nelson Piquet | Benetton |
| 12 | Stefano Modena | Tyrrell |
| 13 | Gianni Morbidelli | Minardi |
| 14 | Andrea de Cesaris | Jordan |
| 15 | Mark Blundell | Brabham |
| 16 | Emanuele Pirro | Dallara |
| 17 | Satoru Nakajima | Tyrrell |
| 18 | Jyrki Järvilehto | Dallara |
| 19 | Martin Brundle | Brabham |
| 20 | Thierry Boutsen | Ligier |
| 21 | Roberto Moreno | Jordan |
| 22 | Michele Alboreto | Footwork |
| 23 | Érik Comas | Ligier |
| 24 | Mika Häkkinen | Team Lotus |
| 25 | Aguri Suzuki | Lola |
| 26 | Johnny Herbert | Team Lotus |
| Pitlane | Fabrizio Barbazza | AGS |
| Pitlane | Eric van de Poele | Lambo |
| Pitlane | Alex Caffi | Footwork |
| Pitlane | Pedro Chaves | Coloni |
| Pitlane | Éric Bernard | Lola |
| Pitlane | Gabriele Tarquini | AGS |
| Pitlane | Olivier Grouillard | Fondmetal |
| Pitlane | Nicola Larini | Lambo |
| P. | Driver | Constructor | Grid | Laps | Time | Status | Points |
|---|---|---|---|---|---|---|---|
| 1 | Riccardo Patrese | Williams | 1 | 71 | 1:35:42.304 | Finished | 10 |
| 2 | Ayrton Senna | McLaren | 3 | 71 | +20.941 | Finished | 6 |
| 3 | Jean Alesi | Ferrari | 6 | 71 | +53.554 | Finished | 4 |
| 4 | Pierluigi Martini | Minardi | 8 | 71 | +1:03.498 | Finished | 3 |
| 5 | Nelson Piquet | Benetton | 11 | 71 | +1:10.033 | Finished | 2 |
| 6 | Michael Schumacher | Benetton | 10 | 71 | +1:16.582 | Finished | 1 |
| 7 | Maurício Gugelmin | Leyton House | 7 | 70 | +1 Lap | 0 | |
| 8 | Andrea de Cesaris | Jordan | 14 | 70 | +1 Lap | 0 | |
| 9 | Gianni Morbidelli | Minardi | 13 | 70 | +1 Lap | 0 | |
| 10 | Roberto Moreno | Jordan | 21 | 70 | +1 Lap | 0 | |
| 11 | Érik Comas | Ligier | 23 | 70 | +1 Lap | 0 | |
| 12 | Martin Brundle | Brabham | 19 | 69 | +2 Laps | 0 | |
| 13 | Satoru Nakajima | Tyrrell | 17 | 68 | +3 Laps | 0 | |
| 14 | Mika Häkkinen | Team Lotus | 24 | 68 | +3 Laps | 0 | |
| 15 | Michele Alboreto | Footwork | 22 | 68 | +3 Laps | 0 | |
| 16 | Thierry Boutsen | Ligier | 20 | 68 | +3 Laps | 0 | |
| 17 | Ivan Capelli | Leyton House | 9 | 64 | Spun off | 0 | |
| Stefano Modena | Tyrrell | 12 | 56 | Engine | 0 | ||
| Nigel Mansell | Williams | 4 | 51 | Disqualified | 0 | ||
| Aguri Suzuki | Lola | 25 | 40 | Transmission | 0 | ||
| Alain Prost | Ferrari | 5 | 39 | Engine | 0 | ||
| Gerhard Berger | McLaren | 2 | 37 | Engine | 0 | ||
| Emanuele Pirro | Dallara | 16 | 18 | Engine | 0 | ||
| Jyrki Järvilehto | Dallara | 18 | 21 | Gearbox | 0 | ||
| Mark Blundell | Brabham | 15 | 12 | Suspension | 0 | ||
| Johnny Herbert | Team Lotus | 26 | 1 | Engine | 0 | ||
| Éric Bernard | Lola | Pitlane | 0 | Did not qualify | 0 | ||
| Gabriele Tarquini | AGS | Pitlane | 0 | Did not qualify | 0 | ||
| Nicola Larini | Lambo | Pitlane | 0 | Did not qualify | 0 | ||
| Eric van de Poele | Lambo | Pitlane | 0 | Did not qualify | 0 | ||
| Fabrizio Barbazza | AGS | Pitlane | 0 | Did not prequalify | 0 | ||
| Olivier Grouillard | Fondmetal | Pitlane | 0 | Did not prequalify | 0 | ||
| Alex Caffi | Footwork | Pitlane | 0 | Did not prequalify | 0 | ||
| Pedro Chaves | Coloni | Pitlane | 0 | Did not prequalify | 0 |