Round 4 of 16 · Monte-Carlo · 12 May 1991, Sunday
Monaco Grand Prix
Key highlights
Senna
pole position
78
laps
12
finishers out of 26
| Pos | Driver | Team | Time / Gap | Pts |
|---|---|---|---|---|
| 1 | Ayrton Senna | McLaren | 1:53:02.334 | 10 |
| 2 | Nigel Mansell | Williams | +18.348 | 6 |
| 3 | Jean Alesi | Ferrari | +47.455 | 4 |
| 4 | Roberto Moreno | Benetton | +1 Lap | 3 |
| 5 | Alain Prost | Ferrari | +1 Lap | 2 |
| 6 | Emanuele Pirro | Dallara | +1 Lap | 1 |
| 7 | Thierry Boutsen | Ligier | +2 Laps | |
| 8 | Bertrand Gachot | Jordan | +2 Laps | |
| 9 | Éric Bernard | Lola | +2 Laps | |
| 10 | Érik Comas | Ligier | +2 Laps | |
| 11 | Jyrki Järvilehto | Dallara | +3 Laps | |
| 12 | Pierluigi Martini | Minardi | +6 Laps | |
| DNF | Mika Häkkinen | Team Lotus | Oil leak | |
| DNF | Gianni Morbidelli | Minardi | Gearbox | |
| DNF | Maurício Gugelmin | Leyton House | Throttle | |
| DNF | Stefano Modena | Tyrrell | Engine | |
| DNF | Riccardo Patrese | Williams | Spun off | |
| DNF | Mark Blundell | Brabham | Spun off | |
| DNF | Michele Alboreto | Footwork | Engine | |
| DNF | Satoru Nakajima | Tyrrell | Spun off | |
| DNF | Aguri Suzuki | Lola | Engine | |
| DNF | Andrea de Cesaris | Jordan | Throttle | |
| DNF | Ivan Capelli | Leyton House | Brakes | |
| DNF | Gabriele Tarquini | AGS | Gearbox | |
| DNF | Gerhard Berger | McLaren | Spun off | |
| DNF | Nelson Piquet | Benetton | Suspension | |
| DNQ | Julian Bailey | Team Lotus | Did not qualify | |
| DNQ | Fabrizio Barbazza | AGS | Did not qualify | |
| DNQ | Alex Caffi | Footwork | Did not qualify | |
| DNQ | Martin Brundle | Brabham | Did not qualify | |
| DNPQ | Nicola Larini | Lambo | Did not prequalify | |
| DNPQ | Eric van de Poele | Lambo | Did not prequalify | |
| DNPQ | Pedro Chaves | Coloni | Did not prequalify | |
| DNPQ | Olivier Grouillard | Fondmetal | Did not prequalify |
- DNF
- Did not finish
- DNQ
- Did not qualify
- DNPQ
- Did not pre-qualify