1991 Iceberg USA Grand Prix
| Pos | No | Driver | Constructor | Laps | Time / Gap | Pts | Grid | |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Ayrton Senna | McLaren | 81 | 2:00:47.828 | 10 | 1 | Pole |
| 2 | 27 | Alain Prost | Ferrari | 81 | 2:01:04.150 | 6 | 2 | |
| 3 | 20 | Nelson Piquet | Benetton | 81 | 2:01:05.204 | 4 | 5 | |
| 4 | 4 | Stefano Modena | Tyrrell | 81 | 2:01:13.237 | 3 | 11 | |
| 5 | 3 | Satoru Nakajima | Tyrrell | 80 | +1 lap | 2 | 16 | |
| 6 | 30 | Aguri Suzuki | Lola | 79 | +2 laps | 1 | 21 | |
| 7 | 34 | Nicola Larini | Modena | 78 | +3 laps | — | 17 | |
| 8 | 17 | Gabriele Tarquini | AGS | 77 | +4 laps | — | 22 | |
| 9 | 23 | Pierluigi Martini | Minardi | 75 | Engine | — | 15 | |
| 10 | 32 | Bertrand Gachot | Jordan | 75 | Engine | — | 14 | |
| 11 | 7 | Martin Brundle | Brabham | 73 | +8 laps | — | 12 | |
| 12 | 28 | Jean Alesi | Ferrari | 72 | Gearbox | — | 6 | FL |
| DNF | 11 | Mika Häkkinen | Lotus | 59 | Engine | — | 13 | |
| DNF | 6 | Riccardo Patrese | Williams | 49 | Gearbox | — | 3 | |
| DNF | 19 | Roberto Moreno | Benetton | 49 | Collision | — | 8 | |
| DNF | 9 | Michele Alboreto | Footwork | 41 | Engine | — | 25 | |
| DNF | 16 | Ivan Capelli | Leyton House | 40 | Gearbox | — | 18 | |
| DNF | 25 | Thierry Boutsen | Ligier | 40 | Engine | — | 20 | |
| DNF | 2 | Gerhard Berger | McLaren | 36 | Fuel pump | — | 7 | |
| DNF | 5 | Nigel Mansell | Williams | 35 | Gearbox | — | 4 | |
| DNF | 15 | Maurício Gugelmin | Leyton House | 34 | Gearbox | — | 23 | |
| DNF | 8 | Mark Blundell | Brabham | 32 | Spun off | — | 24 | |
| DNF | 21 | Emanuele Pirro | Dallara | 16 | Gearbox | — | 9 | |
| DNF | 24 | Gianni Morbidelli | Minardi | 15 | Gearbox | — | 26 | |
| DNF | 22 | JJ Lehto | Dallara | 12 | Gearbox | — | 10 | |
| DNF | 29 | Éric Bernard | Lola | 4 | Engine | — | 19 | |
| DNQ | 26 | Érik Comas | Ligier | — | — | — | — | |
| DNQ | 10 | Alex Caffi | Footwork | — | — | — | — | |
| DNQ | 18 | Stefan Johansson | AGS | — | — | — | — | |
| DNQ | 12 | Julian Bailey | Lotus | — | — | — | — | |
| DNPQ | 33 | Andrea de Cesaris | Jordan | — | — | — | — | |
| DNPQ | 31 | Pedro Chaves | Coloni | — | — | — | — | |
| DNPQ | 14 | Olivier Grouillard | Fondmetal | — | — | — | — | |
| DNPQ | 35 | Eric van de Poele | Modena | — | — | — | — |
| Pos | Driver | Constructor | Q1 | Q2 | Q3 | Time |
|---|---|---|---|---|---|---|
| 1 | Ayrton Senna | McLaren | — | — | — | 1:21.434 |
| 2 | Alain Prost | Ferrari | — | — | — | 1:22.555 |
| 3 | Riccardo Patrese | Williams | — | — | — | 1:22.833 |
| 4 | Nigel Mansell | Williams | — | — | — | 1:23.218 |
| 5 | Nelson Piquet | Benetton | — | — | — | 1:23.384 |
| 6 | Jean Alesi | Ferrari | — | — | — | 1:23.519 |
| 7 | Gerhard Berger | McLaren | — | — | — | 1:23.742 |
| 8 | Roberto Moreno | Benetton | — | — | — | 1:23.881 |
| 9 | Emanuele Pirro | Dallara | — | — | — | 1:24.792 |
| 10 | JJ Lehto | Dallara | — | — | — | 1:24.891 |
| 11 | Stefano Modena | Tyrrell | — | — | — | 1:25.065 |
| 12 | Martin Brundle | Brabham | — | — | — | 1:25.385 |
| 13 | Mika Häkkinen | Lotus | — | — | — | 1:25.448 |
| 14 | Bertrand Gachot | Jordan | — | — | — | 1:25.701 |
| 15 | Pierluigi Martini | Minardi | — | — | — | 1:25.715 |
| 16 | Satoru Nakajima | Tyrrell | — | — | — | 1:25.752 |
| 17 | Nicola Larini | Modena | — | — | — | 1:25.791 |
| 18 | Ivan Capelli | Leyton House | — | — | — | 1:26.121 |
| 19 | Éric Bernard | Lola | — | — | — | 1:26.425 |
| 20 | Thierry Boutsen | Ligier | — | — | — | 1:26.500 |
| 21 | Aguri Suzuki | Lola | — | — | — | 1:26.548 |
| 22 | Gabriele Tarquini | AGS | — | — | — | 1:26.851 |
| 23 | Maurício Gugelmin | Leyton House | — | — | — | 1:26.865 |
| 24 | Mark Blundell | Brabham | — | — | — | 1:26.915 |
| 25 | Michele Alboreto | Footwork | — | — | — | 1:27.015 |
| 26 | Gianni Morbidelli | Minardi | — | — | — | 1:27.042 |
| 27 | Érik Comas | Ligier | — | — | — | 1:27.159 |
| 28 | Alex Caffi | Footwork | — | — | — | 1:27.519 |
| 29 | Stefan Johansson | AGS | — | — | — | 1:27.753 |
| 30 | Julian Bailey | Lotus | — | — | — | 1:28.570 |
| Grid | Driver | Constructor | Quali | Penalty |
|---|---|---|---|---|
| 1 | Ayrton Senna | McLaren | 1 | — |
| 2 | Alain Prost | Ferrari | 2 | — |
| 3 | Riccardo Patrese | Williams | 3 | — |
| 4 | Nigel Mansell | Williams | 4 | — |
| 5 | Nelson Piquet | Benetton | 5 | — |
| 6 | Jean Alesi | Ferrari | 6 | — |
| 7 | Gerhard Berger | McLaren | 7 | — |
| 8 | Roberto Moreno | Benetton | 8 | — |
| 9 | Emanuele Pirro | Dallara | 9 | — |
| 10 | JJ Lehto | Dallara | 10 | — |
| 11 | Stefano Modena | Tyrrell | 11 | — |
| 12 | Martin Brundle | Brabham | 12 | — |
| 13 | Mika Häkkinen | Lotus | 13 | — |
| 14 | Bertrand Gachot | Jordan | 14 | — |
| 15 | Pierluigi Martini | Minardi | 15 | — |
| 16 | Satoru Nakajima | Tyrrell | 16 | — |
| 17 | Nicola Larini | Modena | 17 | — |
| 18 | Ivan Capelli | Leyton House | 18 | — |
| 19 | Éric Bernard | Lola | 19 | — |
| 20 | Thierry Boutsen | Ligier | 20 | — |
| 21 | Aguri Suzuki | Lola | 21 | — |
| 22 | Gabriele Tarquini | AGS | 22 | — |
| 23 | Maurício Gugelmin | Leyton House | 23 | — |
| 24 | Mark Blundell | Brabham | 24 | — |
| 25 | Michele Alboreto | Footwork | 25 | — |
| 26 | Gianni Morbidelli | Minardi | 26 | — |
| # | Driver | Constructor | Lap | Time | Gap |
|---|---|---|---|---|---|
| 1 | Jean Alesi | Ferrari | 49 | 1:26.758 | — |
| 2 | Alain Prost | Ferrari | 68 | 1:26.845 | +0.087 |
| 3 | Nelson Piquet | Benetton | 67 | 1:26.965 | +0.207 |
| 4 | Ayrton Senna | McLaren | 39 | 1:27.153 | +0.395 |
| 5 | Riccardo Patrese | Williams | 24 | 1:27.450 | +0.692 |
| 6 | Stefano Modena | Tyrrell | 69 | 1:27.983 | +1.225 |
| 7 | Roberto Moreno | Benetton | 40 | 1:28.044 | +1.286 |
| 8 | Satoru Nakajima | Tyrrell | 67 | 1:28.227 | +1.469 |
| 9 | Gerhard Berger | McLaren | 33 | 1:28.286 | +1.528 |
| 10 | Nigel Mansell | Williams | 28 | 1:28.502 | +1.744 |
Drivers after race
| Pos | Driver | Pts |
|---|---|---|
| 1 | Ayrton Senna | 10 |
| 2 | Alain Prost | 6 |
| 3 | Nelson Piquet | 4 |
| 4 | Stefano Modena | 3 |
| 5 | Satoru Nakajima | 2 |
| 6 | Aguri Suzuki | 1 |
