Mexican Grand Prix
United States Grand Prix East
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| Pos | Driver | Constructor | Q1 | Q2 | Gap |
|---|---|---|---|---|---|
| 1 | Ayrton Senna | McLaren-Honda | 1:22.392 | 1:21.681 | |
| 2 | Alain Prost | McLaren-Honda | 1:22.499 | 1:21.863 | 0.182 |
| 3 | Gerhard Berger | Ferrari | 1:22.719 | 1:22.785 | 1.038 |
| 4 | Michele Alboreto | Ferrari | 1:23.976 | 1:23.296 | 1.615 |
| 5 | Alessandro Nannini | Benetton-Ford | 1:25.561 | 1:23.968 | 2.287 |
| 6 | Nelson Piquet | Lotus-Honda | 1:24.166 | 1:23.995 | 2.314 |
| 7 | Thierry Boutsen | Benetton-Ford | 1:25.173 | 1:24.115 | 2.434 |
| 8 | Eddie Cheever | Arrows-Megatron | 1:24.679 | 1:25.068 | 2.998 |
| 9 | Nigel Mansell | Williams-Judd | 1:24.844 | 1:25.251 | 3.163 |
| 10 | Philippe Streiff | AGS-Ford | 1:25.878 | 1:24.968 | 3.287 |
| 11 | Riccardo Patrese | Williams-Judd | 1:24.971 | 1:25.471 | 3.290 |
| 12 | Andrea de Cesaris | Rial-Ford | 1:26.039 | 1:24.988 | 3.307 |
| 13 | Satoru Nakajima | Lotus-Honda | 1:25.373 | 1:26.650 | 3.692 |
| 14 | Ivan Capelli | March-Judd | 1:25.609 | 1:26.815 | 3.928 |
| 15 | Stefano Modena | EuroBrun-Ford | 1:26.652 | 1:25.713 | 4.032 |
| 16 | Derek Warwick | Arrows-Megatron | 1:26.052 | 1:25.740 | 4.059 |
| 17 | Philippe Alliot | Lola-Ford | 1:27.543 | 1:25.765 | 4.084 |
| 18 | Mauricio Gugelmin | March-Judd | 1:25.910 | 1:25.982 | 4.229 |
| 19 | Jonathan Palmer | Tyrrell-Ford | 1:27.230 | 1:26.092 | 4.411 |
| 20 | René Arnoux | Ligier-Judd | 1:26.716 | 1:26.327 | 4.646 |
| 21 | Luis Perez-Sala | Minardi-Ford | 1:26.822 | 1:26.437 | 4.756 |
| 22 | Piercarlo Ghinzani | Zakspeed | 1:28.400 | 1:26.786 | 5.105 |
| 23 | Julian Bailey | Tyrrell-Ford | 1:28.737 | 1:27.139 | 5.458 |
| 24 | Oscar Larrauri | EuroBrun-Ford | 1:27.676 | 1:27.321 | 5.640 |
| 25 | Stefan Johansson | Ligier-Judd | 1:28.614 | 1:27.637 | 5.956 |
| 26 | Gabriele Tarquini | Coloni-Ford | No time | 1:27.655 | 5.974 |
| DNQ | Adrián Campos | Minardi-Ford | 1:27.885 | 1:27.979 | 6.204 |
| DNQ | Nicola Larini | Osella | 1:39.782 | 1:27.981 | 6.300 |
| DNQ | Yannick Dalmas | Lola-Ford | No time | 1:28.012 | 6.331 |
| DNQ | Bernd Schneider | Zakspeed | 1:29.110 | 1:28.215 | 6.534 |
| 1 | Alain Prost | 39 | 9,6,9,9,6 | |
| ▲ | 2 | Ayrton Senna | 24 | 0,9,0,6,9 |
| ▼ | 3 | Gerhard Berger | 18 | 6,2,6,4,0 |
| ▲ | 4 | Nelson Piquet | 11 | 4,4,0,0,3 |
| ▼ | 5 | Michele Alboreto | 9 | 2,0,4,3,0 |
| ▼ | 6 | Derek Warwick | 8 | 3,0,3,2,0 |
| 7 | Thierry Boutsen | 7 | 0,3,0,0,4 | |
| 8 | Jonathan Palmer | 3 | 0,0,2,0,1 | |
| ▲ | 9 | Ivan Capelli | 2 | 0,0,0,0,2 |
| ▼ | 10 | Alessandro Nannini | 1 | 0,1,0,0,0 |
| ▼ | Satoru Nakajima | 1 | 1,0,0,0,0 | |
| ▼ | Riccardo Patrese | 1 | 0,0,1,0,0 | |
| ▼ | Eddie Cheever | 1 | 0,0,0,1,0 |
| 1 | McLaren-Honda | 63 | 9,15,9,15,15 | |
| 2 | Ferrari | 27 | 8,2,10,7,0 | |
| 3 | Lotus-Honda | 12 | 5,4,0,0,3 | |
| ▼ | 4 | Arrows-Megatron | 9 | 3,0,3,3,0 |
| 5 | Benetton-Ford | 8 | 0,4,0,0,4 | |
| 6 | Tyrrell-Ford | 3 | 0,0,2,0,1 | |
| ▲ | 7 | March-Judd | 2 | 0,0,0,0,2 |
| ▼ | 8 | Williams-Judd | 1 | 0,0,1,0,0 |