| «1991-04» | Monaco Grand Prix - XLIX Grand Prix Automobile de Monaco |
| 1991-05-12 | Monaco - 78 laps × 3.328 km : 259.584 km |
| Pos | Grid | Car | Driver | Constructor | Q1 | Q2 | Best | Gap | Interval |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 1 | Ayrton Senna | McLaren • Honda | 01:20.508 | 01:20.344 | 01:20.344 | 149.119 km/h | |
| 2 | 2 | 4 | Stefano Modena | Tyrrell • Honda | 01:23.442 | 01:20.809 | 01:20.809 | +00.465 (+0.579%) | +00.465 |
| 3 | 3 | 6 | Riccardo Patrese | Williams • Renault | 01:22.057 | 01:20.973 | 01:20.973 | +00.629 (+0.783%) | +00.164 |
| 4 | 4 | 20 | Nelson Piquet | Benetton • Ford Cosworth | 01:22.816 | 01:21.159 | 01:21.159 | +00.815 (+1.014%) | +00.186 |
| 5 | 5 | 5 | Nigel Mansell | Williams • Renault | 01:23.274 | 01:21.205 | 01:21.205 | +00.861 (+1.072%) | +00.046 |
| 6 | 6 | 2 | Gerhard Berger | McLaren • Honda | 01:21.222 | 01:21.583 | 01:21.222 | +00.878 (+1.093%) | +00.017 |
| 7 | 7 | 27 | Alain Prost | Ferrari | 01:22.113 | 01:21.455 | 01:21.455 | +01.111 (+1.383%) | +00.233 |
| 8 | 8 | 19 | Roberto Moreno | Benetton • Ford Cosworth | 01:23.476 | 01:21.804 | 01:21.804 | +01.460 (+1.817%) | +00.349 |
| 9 | 9 | 28 | Jean Alesi | Ferrari | 01:22.966 | 01:21.910 | 01:21.910 | +01.566 (+1.949%) | +00.106 |
| 10 | 10 | 33 | Andrea de Cesaris | Jordan • Ford Cosworth | 01:24.257 | 01:22.764 | 01:22.764 | +02.420 (+3.012%) | +00.854 |
| 11 | 11 | 3 | Satoru Nakajima | Tyrrell • Honda | 01:24.435 | 01:22.972 | 01:22.972 | +02.628 (+3.271%) | +00.208 |
| 12 | 12 | 21 | Emanuele Pirro | Dallara • Judd | 01:23.311 | 01:23.022 | 01:23.022 | +02.678 (+3.333%) | +00.050 |
| 13 | 13 | 22 | JJ Lehto | Dallara • Judd | 01:23.023 | 01:23.893 | 01:23.023 | +02.679 (+3.334%) | +00.001 |
| 14 | 14 | 23 | Pierluigi Martini | Minardi • Ferrari | 01:24.101 | 01:23.064 | 01:23.064 | +02.720 (+3.385%) | +00.041 |
| 15 | 15 | 15 | Mauricio Gugelmin | Leyton House • Ilmor | 01:24.920 | 01:23.394 | 01:23.394 | +03.050 (+3.796%) | +00.330 |
| 16 | 16 | 25 | Thierry Boutsen | Ligier • Lamborghini | 01:24.728 | 01:23.431 | 01:23.431 | +03.087 (+3.842%) | +00.037 |
| 17 | 17 | 24 | Gianni Morbidelli | Minardi • Ferrari | 01:24.481 | 01:23.584 | 01:23.584 | +03.240 (+4.033%) | +00.153 |
| 18 | 18 | 16 | Ivan Capelli | Leyton House • Ilmor | 01:25.040 | 01:23.642 | 01:23.642 | +03.298 (+4.105%) | +00.058 |
| 19 | 19 | 30 | Aguri Suzuki | Lola • Ford Cosworth | 01:26.380 | 01:23.898 | 01:23.898 | +03.554 (+4.423%) | +00.256 |
| 20 | 20 | 17 | Gabriele Tarquini | AGS • Ford Cosworth | 01:25.078 | 01:23.909 | 01:23.909 | +03.565 (+4.437%) | +00.011 |
| 21 | 21 | 29 | Eric Bernard | Lola • Ford Cosworth | 01:25.370 | 01:24.079 | 01:24.079 | +03.735 (+4.649%) | +00.170 |
| 22 | 22 | 8 | Mark Blundell | Brabham • Yamaha | 01:25.500 | 01:24.109 | 01:24.109 | +03.765 (+4.686%) | +00.030 |
| 23 | 23 | 26 | Erik Comas | Ligier • Lamborghini | 01:24.747 | 01:24.151 | 01:24.151 | +03.807 (+4.738%) | +00.042 |
| 24 | 24 | 32 | Bertrand Gachot | Jordan • Ford Cosworth | 01:24.540 | 01:24.208 | 01:24.208 | +03.864 (+4.809%) | +00.057 |
| 25 | 25 | 9 | Michele Alboreto | Footwork • Porsche | 01:27.843 | 01:24.606 | 01:24.606 | +04.262 (+5.305%) | +00.398 |
| 26 | 26 | 11 | Mika Hakkinen | Lotus • Judd | 01:24.868 | 01:24.829 | 01:24.829 | +04.485 (+5.582%) | +00.223 |
| 27 | 7 | Martin Brundle | Brabham • Yamaha | 01:24.840 | 01:24.840 | +04.496 (+5.596%) | +00.011 | ||
| 28 | 12 | Julian Bailey | Lotus • Judd | 01:28.772 | 01:26.995 | 01:26.995 | +06.651 (+8.278%) | +02.155 | |
| 29 | 18 | Fabrizio Barbazza | AGS • Ford Cosworth | 01:28.060 | 01:27.079 | 01:27.079 | +06.735 (+8.383%) | +00.084 | |
| 30 | 34 | Nicola Larini | Lamborghini | 01:25.893 | 01:25.893 | +05.549 (+6.907%) | |||
| 31 | 35 | Eric van de Poele | Lamborghini | 01:26.252 | 01:26.282 | +05.938 (+7.391%) | +00.389 | ||
| 32 | 31 | Pedro Chaves | Coloni • Ford Cosworth | 01:27.389 | 01:27.389 | +07.045 (+8.769%) | +01.107 | ||
| 33 | 14 | Olivier Grouillard | Fondmetal • Ford Cosworth | 01:27.759 | 01:27.759 | +07.415 (+9.229%) | +00.370 | ||
| 34 | 10 | Alex Caffi | Footwork • Porsche |