1984 Grand Prix of United States
24 June - Detroit: 63 laps x 4.023 km = 253.472 km
Pole Position: N Piquet Brabham 1 min:40.980s Fastest Lap: 136.358 km/h D Warwick Renault 1 min:46.221s Results: 1 N Piquet Brabham 1 h 55m 41.842s 2 E de Angelis Lotus 1 h 56m 14.480s 3 T Fabi Brabham 1 h 57m 08.370s 4 A Prost McLaren 1 h 57m 37.100s 5 J Laffite Williams 62 Disqualified: M 8rundle Tyrrell 63 1 h 55m 42.679s/ (1) S Bellof Tyrrell 33 accident/ (1) Did Not Finish: M Alboreto Ferrari 49 engine K Rosberg Williams 47 exhaust/ turbo D Warwick Renault 40 gearbox P Tambay Renault 33 transmission P Alliot RAM 33 brakes/ accident N Lauda McLaren 33 electronics N Mansell Lotus 27 gearbox T Boutsen Arrows 27 engine A de Cesaris Ligier 24 engine overheating J Cecotto Toleman 23 clutch E Cheever Alfa Romeo 21 engine A Senna Toleman 21 accident R Patrese Alfa Romeo 20 spin F Hesnault Ligier 3 accident P Ghinzani Osella 3 accident R Arnoux Ferrari 2 accident J Palmer RAM 2 tyre burst/ accident M Winkelhock ATS 0 accident M Surer Arrows 0 accident * Did Not Qualify: H Rothengatter Spirit Qualifying Times: 1 1 Nelson Piquet Brabham/BMW 1'40.980 2 7 Alain Prost McLaren/TAG 1'41.640 3 12 Nigel Mansell Lotus/Renault 1'42.172 4 27 Michele Alboreto Ferrari 1'42.246 5 11 Elio de Angelis Lotus/Renault 1'42.434 6 16 Derek Warwick Renault 1'42.637 7 19 Ayrton Senna Toleman/Hart 1'42.651 8 23 Eddie Cheever Alfa Romeo 1'43.065 9 15 Patrick Tambay Renault 1'43.289 10 8 Niki Lauda McLaren/TAG 1'43.484 11 3 Martin Brundle Tyrrell/Ford 1'43.754 12 26 A.de Cesaris Ligier/Renault 1'43.998 13 18 Thierry Boutsen Arrows/BMW 1'44.063 14 14 M.Winkelhock ATS/BMW 1'44.228 15 28 Rene Arnoux Ferrari 1'44.748 16 4 Stefan Bellof Tyrrell/Ford 1'44.940 17 20 Johnny Cecotto Toleman/Hart 1'45.231 18 25 F.Hesnault Ligier/Renault 1'45.419 19 5 Jacques Laffite Williams/Honda 1'46.225 20 9 Philippe Alliot RAM/Hart 1'46.333 21 6 Keke Rosberg Williams/Honda 1'46.495 22 17 Marc Surer Arrows/Ford 1'46.626 23 2 Teo Fabi Brabham/BMW 1'47.335 24 10 Jonathan Palmer RAM/Hart 1'47.743 25 22 Riccardo Patrese Alfa Romeo 1'47.974 26 24 P.Ghinzani Osella/Alfa Romeo 1'48.865 Not qualified 27 21 H.Rothengatter Spirit/Ford 1'49.955 Note: Interrupted after 1st lap accident. Restarded for original distance. * retired after first start It was at this race that a water sample from M Brundle's car was found to infringe the regulations, resulting in Tyrrell's disqualification from the season.