Grand Prix de Monaco 1991
| Pos | No | Driver | Constructor | Laps | Time / Gap | Pts | Grid | |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Ayrton Senna | McLaren | 78 | 1:53:02.334 | 10 | 1 | Pole |
| 2 | 5 | Nigel Mansell | Williams | 78 | 1:53:20.682 | 6 | 5 | |
| 3 | 28 | Jean Alesi | Ferrari | 78 | 1:53:49.789 | 4 | 9 | |
| 4 | 19 | Roberto Moreno | Benetton | 77 | +1 lap | 3 | 8 | |
| 5 | 27 | Alain Prost | Ferrari | 77 | +1 lap | 2 | 7 | FL |
| 6 | 21 | Emanuele Pirro | Dallara | 77 | +1 lap | 1 | 12 | |
| 7 | 25 | Thierry Boutsen | Ligier | 76 | +2 laps | — | 16 | |
| 8 | 32 | Bertrand Gachot | Jordan | 76 | +2 laps | — | 24 | |
| 9 | 29 | Éric Bernard | Lola | 76 | +2 laps | — | 21 | |
| 10 | 26 | Érik Comas | Ligier | 76 | +2 laps | — | 23 | |
| 11 | 22 | JJ Lehto | Dallara | 75 | +3 laps | — | 13 | |
| 12 | 23 | Pierluigi Martini | Minardi | 72 | +6 laps | — | 14 | |
| DNF | 11 | Mika Häkkinen | Lotus | 64 | Oil leak | — | 26 | |
| DNF | 24 | Gianni Morbidelli | Minardi | 49 | Gearbox | — | 17 | |
| DNF | 15 | Maurício Gugelmin | Leyton House | 43 | Throttle | — | 15 | |
| DNF | 4 | Stefano Modena | Tyrrell | 42 | Engine | — | 2 | |
| DNF | 6 | Riccardo Patrese | Williams | 42 | Accident | — | 3 | |
| DNF | 8 | Mark Blundell | Brabham | 41 | Spun off | — | 22 | |
| DNF | 9 | Michele Alboreto | Footwork | 39 | Engine | — | 25 | |
| DNF | 3 | Satoru Nakajima | Tyrrell | 35 | Spun off | — | 11 | |
| DNF | 30 | Aguri Suzuki | Lola | 24 | Brakes | — | 19 | |
| DNF | 33 | Andrea de Cesaris | Jordan | 21 | Throttle | — | 10 | |
| DNF | 16 | Ivan Capelli | Leyton House | 12 | Brakes | — | 18 | |
| DNF | 17 | Gabriele Tarquini | AGS | 9 | Gearbox | — | 20 | |
| DNF | 2 | Gerhard Berger | McLaren | 9 | Accident | — | 6 | |
| DNF | 20 | Nelson Piquet | Benetton | 0 | Suspension | — | 4 | |
| DNQ | 12 | Julian Bailey | Lotus | — | — | — | — | |
| DNQ | 18 | Fabrizio Barbazza | AGS | — | — | — | — | |
| DNQ | 10 | Alex Caffi | Footwork | — | — | — | — | |
| EX | 7 | Martin Brundle | Brabham | — | Missed weight check | — | — | |
| DNPQ | 34 | Nicola Larini | Modena | — | — | — | — | |
| DNPQ | 35 | Eric van de Poele | Modena | — | — | — | — | |
| DNPQ | 31 | Pedro Chaves | Coloni | — | — | — | — | |
| DNPQ | 14 | Olivier Grouillard | Fondmetal | — | — | — | — |
| Pos | Driver | Constructor | Q1 | Q2 | Q3 | Time |
|---|---|---|---|---|---|---|
| 1 | Ayrton Senna | McLaren | — | — | — | 1:20.344 |
| 2 | Stefano Modena | Tyrrell | — | — | — | 1:20.809 |
| 3 | Riccardo Patrese | Williams | — | — | — | 1:20.973 |
| 4 | Nelson Piquet | Benetton | — | — | — | 1:21.159 |
| 5 | Nigel Mansell | Williams | — | — | — | 1:21.205 |
| 6 | Gerhard Berger | McLaren | — | — | — | 1:21.222 |
| 7 | Alain Prost | Ferrari | — | — | — | 1:21.455 |
| 8 | Roberto Moreno | Benetton | — | — | — | 1:21.804 |
| 9 | Jean Alesi | Ferrari | — | — | — | 1:21.910 |
| 10 | Andrea de Cesaris | Jordan | — | — | — | 1:22.764 |
| 11 | Satoru Nakajima | Tyrrell | — | — | — | 1:22.972 |
| 12 | Emanuele Pirro | Dallara | — | — | — | 1:23.022 |
| 13 | JJ Lehto | Dallara | — | — | — | 1:23.023 |
| 14 | Pierluigi Martini | Minardi | — | — | — | 1:23.064 |
| 15 | Maurício Gugelmin | Leyton House | — | — | — | 1:23.394 |
| 16 | Thierry Boutsen | Ligier | — | — | — | 1:23.431 |
| 17 | Gianni Morbidelli | Minardi | — | — | — | 1:23.584 |
| 18 | Ivan Capelli | Leyton House | — | — | — | 1:23.642 |
| 19 | Aguri Suzuki | Lola | — | — | — | 1:23.898 |
| 20 | Gabriele Tarquini | AGS | — | — | — | 1:23.909 |
| 21 | Éric Bernard | Lola | — | — | — | 1:24.079 |
| 22 | Mark Blundell | Brabham | — | — | — | 1:24.109 |
| 23 | Érik Comas | Ligier | — | — | — | 1:24.151 |
| 24 | Bertrand Gachot | Jordan | — | — | — | 1:24.208 |
| 25 | Michele Alboreto | Footwork | — | — | — | 1:24.606 |
| 26 | Mika Häkkinen | Lotus | — | — | — | 1:24.829 |
| 27 | Martin Brundle | Brabham | — | — | — | 1:24.840 |
| 28 | Julian Bailey | Lotus | — | — | — | 1:26.995 |
| 29 | Fabrizio Barbazza | AGS | — | — | — | 1:27.079 |
| Grid | Driver | Constructor | Quali | Penalty |
|---|---|---|---|---|
| 1 | Ayrton Senna | McLaren | 1 | — |
| 2 | Stefano Modena | Tyrrell | 2 | — |
| 3 | Riccardo Patrese | Williams | 3 | — |
| 4 | Nelson Piquet | Benetton | 4 | — |
| 5 | Nigel Mansell | Williams | 5 | — |
| 6 | Gerhard Berger | McLaren | 6 | — |
| 7 | Alain Prost | Ferrari | 7 | — |
| 8 | Roberto Moreno | Benetton | 8 | — |
| 9 | Jean Alesi | Ferrari | 9 | — |
| 10 | Andrea de Cesaris | Jordan | 10 | — |
| 11 | Satoru Nakajima | Tyrrell | 11 | — |
| 12 | Emanuele Pirro | Dallara | 12 | — |
| 13 | JJ Lehto | Dallara | 13 | — |
| 14 | Pierluigi Martini | Minardi | 14 | — |
| 15 | Maurício Gugelmin | Leyton House | 15 | — |
| 16 | Thierry Boutsen | Ligier | 16 | — |
| 17 | Gianni Morbidelli | Minardi | 17 | — |
| 18 | Ivan Capelli | Leyton House | 18 | — |
| 19 | Aguri Suzuki | Lola | 19 | — |
| 20 | Gabriele Tarquini | AGS | 20 | — |
| 21 | Éric Bernard | Lola | 21 | — |
| 22 | Mark Blundell | Brabham | 22 | — |
| 23 | Érik Comas | Ligier | 23 | — |
| 24 | Bertrand Gachot | Jordan | 24 | — |
| 25 | Michele Alboreto | Footwork | 25 | — |
| 26 | Mika Häkkinen | Lotus | 26 | — |
| # | Driver | Constructor | Lap | Time | Gap |
|---|---|---|---|---|---|
| 1 | Alain Prost | Ferrari | 77 | 1:24.368 | — |
| 2 | Nigel Mansell | Williams | 53 | 1:24.850 | +0.482 |
| 3 | Riccardo Patrese | Williams | 34 | 1:25.147 | +0.779 |
| 4 | Gerhard Berger | McLaren | 6 | 1:25.228 | +0.860 |
| 5 | Ayrton Senna | McLaren | 32 | 1:25.250 | +0.882 |
| 6 | Stefano Modena | Tyrrell | 34 | 1:25.629 | +1.261 |
| 7 | Roberto Moreno | Benetton | 31 | 1:25.823 | +1.455 |
| 8 | Jean Alesi | Ferrari | 51 | 1:26.055 | +1.687 |
| 9 | Andrea de Cesaris | Jordan | 10 | 1:26.257 | +1.889 |
| 10 | Mika Häkkinen | Lotus | 64 | 1:26.627 | +2.259 |
Drivers after race
| Pos | Driver | Pts |
|---|---|---|
| 1 | Ayrton Senna | 40 |
| 2 | Alain Prost | 11 |
| 3 | Gerhard Berger | 10 |
| 4 | Riccardo Patrese | 6 |
| 4 | Nigel Mansell | 6 |
| 6 | Nelson Piquet | 6 |
| 7 | Jean Alesi | 5 |
| 8 | JJ Lehto | 4 |
| 9 | Stefano Modena | 3 |
| 9 | Pierluigi Martini | 3 |
| 9 | Roberto Moreno | 3 |
| 12 | Satoru Nakajima | 2 |
| 12 | Mika Häkkinen | 2 |
| 14 | Aguri Suzuki | 1 |
| 14 | Julian Bailey | 1 |
| 14 | Emanuele Pirro | 1 |
