1984 Grand Prix USA Detroit
24 June - Detroit: 253.472km (4.023km x 63 laps)


Interrupted after start accident. Restarted for original distance.


Pole Position: Nelson Piquet, Brabham-BMW BT53, 1:40.980


Results
 1. Nelson Piquet          Brabham-BMW BT53            1:55:41.842 (131.449 km/h)
    Martin Brundle         Tyrrell-Ford 012           -      0.837 (Disqualified)
 2. Elio de Angelis        Lotus-Renault 95T          -     32.638
 3. Teo Fabi               Brabham-BMW BT53           -   1:26.528
 4. Alain Prost            McLaren-TAG MP4/2          -   1:55.258
 5. Jacques Laffite        Williams-Honda FW09        -  1 lap
    
Fastest lap: Derek Warwick, 1:46.221 (136.358 km/h on lap 32)
    

Retirements
    Michele Alboreto       Ferrari 126C4              - 14 laps (Engine)
    Keke Rosberg           Williams-Honda FW09        - 16 laps (Turbo)
    Derek Warwick          Renault RE50               - 23 laps (Gearbox)
    Patrick Tambay         Renault RE50               - 30 laps (Transmission)
    Philippe Alliot        RAM-Hart 02                - 30 laps (Brakes/Accident)
    Niki Lauda             McLaren-TAG MP4/2          - 30 laps (Electrics)
    Stefan Bellof          Tyrrell-Ford 012           - 30 laps (Accident/Disqualified)
    Thierry Boutsen        Arrows-BMW A7              - 36 laps (Engine)
    Nigel Mansell          Lotus-Renault 95T          - 36 laps (Gearbox)
    Andrea de Cesaris      Ligier-Renault JS23        - 39 laps (Overheating)
    Johnny Cecotto         Toleman-Hart TG184         - 40 laps (Clutch)
    Eddie Cheever          Alfa Romeo 184T            - 42 laps (Engine)
    Ayrton Senna           Toleman-Hart TG184         - 42 laps (Accident)
    Riccardo Patrese       Alfa Romeo 184T            - 43 laps (Spun)
    Francois Hesnault      Ligier-Renault JS23        - 60 laps (Accident)
    Piercarlo Ghinzani     Osella-Alfa Romeo FA1F     - 60 laps (Accident)
    René Arnoux            Ferrari 126C4              - 61 laps (Accident)
    Jonathan Palmer        RAM-Hart 02                - 61 laps (Tyre burst/Accident)
    Marc Surer             Arrows-Ford A6             - 63 laps (Accident*)
    Manfred Winkelhock     ATS-BMW D7                 - 63 laps (Engine)
    
Did Not Qualify    
    Huub Rothengatter      Spirit-Ford 101


    Race leaders:
    Nelson Piquet           1-63 (63 laps = 253.472 km)
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                                Starting Grid

 1. Nelson Piquet          Brabham-BMW BT53            1:40.980 (143.435 km/h)
 2. Alain Prost            McLaren-TAG MP4/2          -   0.660
 3. Nigel Mansell          Lotus-Renault 95T          -   1.192
 4. Michele Alboreto       Ferrari 126C4              -   1.266
 5. Elio de Angelis        Lotus-Renault 95T          -   1.454
 6. Derek Warwick          Renault RE50               -   1.657
 7. Ayrton Senna           Toleman-Hart TG184         -   1.671
 8. Eddie Cheever          Alfa Romeo 184T            -   2.085
 9. Patrick Tambay         Renault RE50               -   2.309
10. Niki Lauda             McLaren-TAG MP4/2          -   2.504
11. Martin Brundle         Tyrrell-Ford 012           -   2.774
12. Andrea de Cesaris      Ligier-Renault JS23        -   3.018
13. Thierry Boutsen        Arrows-BMW A7              -   3.083
14. Manfred Winkelhock     ATS-BMW D7                 -   3.248
15. René Arnoux            Ferrari 126C4              -   3.768
16. Stefan Bellof          Tyrrell-Ford 012           -   3.960
17. Johnny Cecotto         Toleman-Hart TG184         -   4.251
18. Francois Hesnault      Ligier-Renault JS23        -   4.439
19. Jacques Laffite        Williams-Honda FW09        -   5.245
20. Philippe Alliot        RAM-Hart 02                -   5.353
21. Keke Rosberg           Williams-Honda FW09        -   5.515
22. Marc Surer             Arrows-Ford A6             -   5.646
23. Teo Fabi               Brabham-BMW BT53           -   6.355
24. Jonathan Palmer        RAM-Hart 02                -   6.763
25. Riccardo Patrese       Alfa Romeo 184T            -   6.994
26. Piercarlo Ghinzani     Osella-Alfa Romeo FA1F     -   7.885
    
Did Not Qualify    
27. Huub Rothengatter      Spirit-Ford 101            -   8.975