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GP of the USA east Detroit 23-6-1985, 63 laps of 4.023 m, Ttoal distance 253.472 m
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| Pos | No | Driver | Team-engine | Diff | Reason |
| 1 | - | Keke Rosberg | Williams-Honda FW10 | 1:55:39.851 | - |
| 2 | - | Stefan Johansson | Ferrari 156/85 | -57.549 | - |
| 3 | - | Michele Alboreto | Ferrari 156/85 | -1:03.170 | - |
| 4 | - | Stefan Bellof | Tyrrell-Ford 012 | -1:06.225 | - |
| 5 | - | Elio de Angelis | Lotus-Renault 97T | -1:26.966 | - |
| 6 | - | Nelson Piquet | Brabham-BMW BT54 | -1 lap | - |
| 7 | - | Thierry Boutsen | Arrows-BMW A8 | -1 lap | - |
| 8 | - | Marc Surer | Brabham-BMW BT54 | -1 lap | - |
| 9 | - | Eddie Cheever | Alfa Romeo 185T | -2 laps | - |
| 10 | - | Andrea de Cesaris | Ligier-Renault JS25 | -2 laps | - |
| 11 | - | Gerhard Berger | Arrows-BMW A8 | -3 laps | - |
| 12 | - | Jacques Laffite | Ligier-Renault JS25 | -5 laps | - |
| 13 | 12 | Ayrton Senna | Lotus-Renault 97T | -12 laps | Collision |
| 14 | - | Martin Brundle | Tyrrell-Ford 012 | -33 laps | Collision |
| 15 | - | Philippe Alliot | RAM-Hart 03 | -36 laps | Collision |
| 16 | 5 | Nigel Mansell | Williams-Honda FW10 | -37 laps | Collision |
| 17 | 22 | Riccardo Patrese | Alfa Romeo 185T | -44 laps | Electrics |
| 18 | 2 | Alain Prost | McLaren-TAG MP4/2B | -44 laps | Brakes |
| 19 | - | Derek Warwick | Renault RE60 | -45 laps | Transmission |
| 20 | - | Patrick Tambay | Renault RE60 | -48 laps | Collision |
| 21 | - | Pierluigi Martini | Minardi-Motori Moderni M185 | -52 laps | Engine |
| 22 | 1 | Niki Lauda | McLaren-TAG MP4/2B | -53 laps | Brakes |
| 23 | - | Teo Fabi | Toleman-Hart TG185 | -59 laps | Clucth |
| 24 | - | Manfred Winkelhock | RAM-Hart 03 | -60 laps | Turbo |
| 25 | - | Piercarlo Ghinzani | Osella-Alfa Romeo FA1G | -63 laps | Collision |