Grand Prix Molson du Canada 1991
| Pos | No | Driver | Constructor | Laps | Time / Gap | Pts | Grid | |
|---|---|---|---|---|---|---|---|---|
| 1 | 20 | Nelson Piquet | Benetton | 69 | 1:38:51.490 | 10 | 8 | |
| 2 | 4 | Stefano Modena | Tyrrell | 69 | 1:39:23.322 | 6 | 9 | |
| 3 | 6 | Riccardo Patrese | Williams | 69 | 1:39:33.707 | 4 | 1 | Pole |
| 4 | 33 | Andrea de Cesaris | Jordan | 69 | 1:40:11.700 | 3 | 11 | |
| 5 | 32 | Bertrand Gachot | Jordan | 69 | 1:40:13.841 | 2 | 14 | |
| 6 | 5 | Nigel Mansell | Williams | 68 | Electrical | 1 | 2 | FL |
| 7 | 23 | Pierluigi Martini | Minardi | 68 | +1 lap | — | 18 | |
| 8 | 26 | Érik Comas | Ligier | 68 | +1 lap | — | 26 | |
| 9 | 21 | Emanuele Pirro | Dallara | 68 | +1 lap | — | 10 | |
| 10 | 3 | Satoru Nakajima | Tyrrell | 67 | +2 laps | — | 12 | |
| DNF | 15 | Maurício Gugelmin | Leyton House | 61 | Engine | — | 23 | |
| DNF | 22 | JJ Lehto | Dallara | 50 | Engine | — | 17 | |
| DNF | 10 | Stefan Johansson | Footwork | 48 | Throttle | — | 25 | |
| DNF | 16 | Ivan Capelli | Leyton House | 42 | Engine | — | 13 | |
| DNF | 28 | Jean Alesi | Ferrari | 34 | Engine | — | 7 | |
| DNF | 29 | Éric Bernard | Lola | 29 | Gearbox | — | 19 | |
| DNF | 27 | Alain Prost | Ferrari | 27 | Gearbox | — | 4 | |
| DNF | 25 | Thierry Boutsen | Ligier | 27 | Engine | — | 16 | |
| DNF | 1 | Ayrton Senna | McLaren | 25 | Alternator | — | 3 | |
| DNF | 11 | Mika Häkkinen | Lotus | 21 | Spun off | — | 24 | |
| DNF | 7 | Martin Brundle | Brabham | 21 | Engine | — | 20 | |
| DNF | 24 | Gianni Morbidelli | Minardi | 20 | Spun off | — | 15 | |
| DNF | 19 | Roberto Moreno | Benetton | 10 | Suspension | — | 5 | |
| DNF | 2 | Gerhard Berger | McLaren | 4 | Injection | — | 6 | |
| DNF | 30 | Aguri Suzuki | Lola | 3 | Fuel leak | — | 22 | |
| DNF | 9 | Michele Alboreto | Footwork | 2 | Throttle | — | 21 | |
| DNQ | 18 | Fabrizio Barbazza | AGS | — | — | — | — | |
| DNQ | 17 | Gabriele Tarquini | AGS | — | — | — | — | |
| DNQ | 8 | Mark Blundell | Brabham | — | — | — | — | |
| DNQ | 12 | Johnny Herbert | Lotus | — | — | — | — | |
| DNPQ | 14 | Olivier Grouillard | Fondmetal | — | — | — | — | |
| DNPQ | 34 | Nicola Larini | Modena | — | — | — | — | |
| DNPQ | 35 | Eric van de Poele | Modena | — | — | — | — | |
| DNPQ | 31 | Pedro Chaves | Coloni | — | — | — | — |
| Pos | Driver | Constructor | Q1 | Q2 | Q3 | Time |
|---|---|---|---|---|---|---|
| 1 | Riccardo Patrese | Williams | — | — | — | 1:19.837 |
| 2 | Nigel Mansell | Williams | — | — | — | 1:20.225 |
| 3 | Ayrton Senna | McLaren | — | — | — | 1:20.318 |
| 4 | Alain Prost | Ferrari | — | — | — | 1:20.656 |
| 5 | Roberto Moreno | Benetton | — | — | — | 1:20.686 |
| 6 | Gerhard Berger | McLaren | — | — | — | 1:20.916 |
| 7 | Jean Alesi | Ferrari | — | — | — | 1:21.227 |
| 8 | Nelson Piquet | Benetton | — | — | — | 1:21.241 |
| 9 | Stefano Modena | Tyrrell | — | — | — | 1:21.298 |
| 10 | Emanuele Pirro | Dallara | — | — | — | 1:21.864 |
| 11 | Andrea de Cesaris | Jordan | — | — | — | 1:22.154 |
| 12 | Satoru Nakajima | Tyrrell | — | — | — | 1:22.262 |
| 13 | Ivan Capelli | Leyton House | — | — | — | 1:22.443 |
| 14 | Bertrand Gachot | Jordan | — | — | — | 1:22.596 |
| 15 | Gianni Morbidelli | Minardi | — | — | — | 1:22.993 |
| 16 | Thierry Boutsen | Ligier | — | — | — | 1:23.040 |
| 17 | JJ Lehto | Dallara | — | — | — | 1:23.040 |
| 18 | Pierluigi Martini | Minardi | — | — | — | 1:23.125 |
| 19 | Éric Bernard | Lola | — | — | — | 1:23.260 |
| 20 | Martin Brundle | Brabham | — | — | — | 1:23.516 |
| 21 | Michele Alboreto | Footwork | — | — | — | 1:23.529 |
| 22 | Aguri Suzuki | Lola | — | — | — | 1:23.585 |
| 23 | Maurício Gugelmin | Leyton House | — | — | — | 1:23.650 |
| 24 | Mika Häkkinen | Lotus | — | — | — | 1:23.923 |
| 25 | Stefan Johansson | Footwork | — | — | — | 1:24.433 |
| 26 | Érik Comas | Ligier | — | — | — | 1:24.460 |
| 27 | Fabrizio Barbazza | AGS | — | — | — | 1:24.491 |
| 28 | Gabriele Tarquini | AGS | — | — | — | 1:24.653 |
| 29 | Mark Blundell | Brabham | — | — | — | 1:24.661 |
| 30 | Johnny Herbert | Lotus | — | — | — | 1:24.732 |
| Grid | Driver | Constructor | Quali | Penalty |
|---|---|---|---|---|
| 1 | Riccardo Patrese | Williams | 1 | — |
| 2 | Nigel Mansell | Williams | 2 | — |
| 3 | Ayrton Senna | McLaren | 3 | — |
| 4 | Alain Prost | Ferrari | 4 | — |
| 5 | Roberto Moreno | Benetton | 5 | — |
| 6 | Gerhard Berger | McLaren | 6 | — |
| 7 | Jean Alesi | Ferrari | 7 | — |
| 8 | Nelson Piquet | Benetton | 8 | — |
| 9 | Stefano Modena | Tyrrell | 9 | — |
| 10 | Emanuele Pirro | Dallara | 10 | — |
| 11 | Andrea de Cesaris | Jordan | 11 | — |
| 12 | Satoru Nakajima | Tyrrell | 12 | — |
| 13 | Ivan Capelli | Leyton House | 13 | — |
| 14 | Bertrand Gachot | Jordan | 14 | — |
| 15 | Gianni Morbidelli | Minardi | 15 | — |
| 16 | Thierry Boutsen | Ligier | 16 | — |
| 17 | JJ Lehto | Dallara | 17 | — |
| 18 | Pierluigi Martini | Minardi | 18 | — |
| 19 | Éric Bernard | Lola | 19 | — |
| 20 | Martin Brundle | Brabham | 20 | — |
| 21 | Michele Alboreto | Footwork | 21 | — |
| 22 | Aguri Suzuki | Lola | 22 | — |
| 23 | Maurício Gugelmin | Leyton House | 23 | — |
| 24 | Mika Häkkinen | Lotus | 24 | — |
| 25 | Stefan Johansson | Footwork | 25 | — |
| 26 | Érik Comas | Ligier | 26 | — |
| # | Driver | Constructor | Lap | Time | Gap |
|---|---|---|---|---|---|
| 1 | Nigel Mansell | Williams | 65 | 1:22.385 | — |
| 2 | Riccardo Patrese | Williams | 48 | 1:22.672 | +0.287 |
| 3 | Stefano Modena | Tyrrell | 52 | 1:23.528 | +1.143 |
| 4 | Nelson Piquet | Benetton | 34 | 1:23.758 | +1.373 |
| 5 | Andrea de Cesaris | Jordan | 54 | 1:24.105 | +1.720 |
| 6 | Jean Alesi | Ferrari | 32 | 1:24.125 | +1.740 |
| 7 | Alain Prost | Ferrari | 25 | 1:24.186 | +1.801 |
| 8 | Bertrand Gachot | Jordan | 50 | 1:24.479 | +2.094 |
| 9 | Ivan Capelli | Leyton House | 40 | 1:24.547 | +2.162 |
| 10 | Ayrton Senna | McLaren | 19 | 1:24.647 | +2.262 |
Drivers after race
| Pos | Driver | Pts |
|---|---|---|
| 1 | Ayrton Senna | 40 |
| 2 | Nelson Piquet | 16 |
| 3 | Alain Prost | 11 |
| 4 | Gerhard Berger | 10 |
| 4 | Riccardo Patrese | 10 |
| 6 | Stefano Modena | 9 |
| 7 | Nigel Mansell | 7 |
| 8 | Jean Alesi | 5 |
| 9 | JJ Lehto | 4 |
| 10 | Pierluigi Martini | 3 |
| 10 | Roberto Moreno | 3 |
| 10 | Andrea de Cesaris | 3 |
| 13 | Satoru Nakajima | 2 |
| 13 | Mika Häkkinen | 2 |
| 13 | Bertrand Gachot | 2 |
| 16 | Aguri Suzuki | 1 |
| 16 | Julian Bailey | 1 |
| 16 | Emanuele Pirro | 1 |