1991 Monaco Grand Prix
Grand Prix
| Position | Driver number | Driver | Constructor | Laps | Time | Grid | Points |
|---|---|---|---|---|---|---|---|
| 1 | 1 |  Ayrton Senna |
McLaren-Honda | 78 | 1:53:02.334 | 1 | 10 |
| 2 | 5 |  Nigel Mansell |
Williams-Renault | 78 | + 18.348 | 5 | 6 |
| 3 | 28 |  Jean Alesi |
Ferrari | 78 | + 47.455 | 9 | 4 |
| 4 | 19 | Roberto Moreno |
Benetton-Ford | 77 | + 1 lap | 8 | 3 |
| 5 | 27 | Alain Prost |
Ferrari | 77 | + 1 lap | 7 | 2 |
| 6 | 21 |  Emanuele Pirro |
Dallara-Judd | 77 | + 1 lap | 12 | 1 |
| 7 | 25 |  Thierry Boutsen |
Ligier-Lamborghini | 76 | + 2 laps | 16 | |
| 8 | 32 | Bertrand Gachot |
Jordan-Ford | 76 | + 2 laps | 24 | |
| 9 | 29 | Éric Bernard |
Lola-Ford | 76 | + 2 laps | 21 | |
| 10 | 26 | Érik Comas |
Ligier-Lamborghini | 76 | + 2 laps | 23 | |
| 11 | 22 |  JJ Lehto |
Dallara-Judd | 75 | + 3 laps | 13 | |
| 12 | 23 | Pierluigi Martini |
Minardi-Ferrari | 72 | + 6 laps | 14 |
Qualifying
| Position | Driver number | Driver | Constructor | Q1 | Q2 | Q3 | Grid |
|---|---|---|---|---|---|---|---|
| 1 | 1 | Ayrton Senna |
McLaren-Honda | 1:20.508 | 1:20.344 | — | undefined |
| 2 | 4 | Stefano Modena |
Tyrrell-Honda | 1:23.442 | 1:20.809 | +0.465 | undefined |
| 3 | 6 | Riccardo Patrese |
Williams-Renault | 1:22.057 | 1:20.973 | +0.629 | undefined |
| 4 | 20 | Nelson Piquet |
Benetton-Ford | 1:22.816 | 1:21.159 | +0.815 | undefined |
| 5 | 5 | Nigel Mansell |
Williams-Renault | 1:23.274 | 1:21.205 | +0.861 | undefined |
| 6 | 2 |  Gerhard Berger |
McLaren-Honda | 1:21.222 | 1:21.583 | +0.878 | undefined |
| 7 | 27 | Alain Prost |
Ferrari | 1:22.113 | 1:21.455 | +1.111 | undefined |
| 8 | 19 | Roberto Moreno |
Benetton-Ford | 1:23.476 | 1:21.804 | +1.460 | undefined |
| 9 | 28 | Jean Alesi |
Ferrari | 1:22.966 | 1:21.910 | +1.566 | undefined |
| 10 | 33 | Andrea de Cesaris |
Jordan-Ford | 1:24.257 | 1:22.764 | +2.420 | undefined |
| 11 | 3 |  Satoru Nakajima |
Tyrrell-Honda | 1:24.435 | 1:22.972 | +2.628 | undefined |
| 12 | 21 | Emanuele Pirro |
Dallara-Judd | 1:23.311 | 1:23.022 | +2.678 | undefined |
| 13 | 22 | JJ Lehto |
Dallara-Judd | 1:23.023 | 1:23.983 | +2.679 | undefined |
| 14 | 23 | Pierluigi Martini |
Minardi-Ferrari | 1:24.101 | 1:23.064 | +2.720 | undefined |
| 15 | 15 | Maurício Gugelmin |
Leyton House-Ilmor | 1:24.920 | 1:23.394 | +3.050 | undefined |
| 16 | 25 | Thierry Boutsen |
Ligier-Lamborghini | 1:24.728 | 1:23.431 | +3.087 | undefined |
| 17 | 24 | Gianni Morbidelli |
Minardi-Ferrari | 1:24.481 | 1:23.584 | +3.240 | undefined |
| 18 | 16 | Ivan Capelli |
Leyton House-Ilmor | 1:25.040 | 1:23.642 | +3.298 | undefined |
| 19 | 30 | Aguri Suzuki |
Lola-Ford | 1:26.380 | 1:23.898 | +3.554 | undefined |
| 20 | 17 | Gabriele Tarquini |
AGS-Ford | 1:25.078 | 1:23.909 | +3.565 | undefined |
| 21 | 29 | Éric Bernard |
Lola-Ford | 1:25.370 | 1:24.079 | +3.735 | undefined |
| 22 | 8 | Mark Blundell |
Brabham-Yamaha | 1:25.500 | 1:24.109 | +3.765 | undefined |
| 23 | 26 | Érik Comas |
Ligier-Lamborghini | 1:24.747 | 1:24.151 | +3.807 | undefined |
| 24 | 32 | Bertrand Gachot |
Jordan-Ford | 1:24.540 | 1:24.208 | +3.864 | undefined |
| 25 | 9 | Michele Alboreto |
Footwork-Porsche | 1:27.843 | 1:24.606 | +4.262 | undefined |
| 26 | 11 | Mika Häkkinen |
Lotus-Judd | 1:24.868 | 1:24.829 | +4.485 | undefined |
| 27 | 12 | Julian Bailey |
Lotus-Judd | 1:28.772 | 1:26.995 | +6.651 | undefined |
| 28 | 18 | Fabrizio Barbazza |
AGS-Ford | 1:28.060 | 1:27.079 | +6.735 | undefined |
| 29 | 10 | Alex Caffi |
Footwork-Porsche | no time | no time | — | undefined |