| «1984-08» | USA East Grand Prix - III Detroit Grand Prix |
| 1984-06-24 | Detroit - 63 laps × 4.023 km : 253.449 km |
| Pos | Grid | Car | Driver | Constructor | Q1 | Q2 | Best | Gap | Interval |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 1 | Nelson Piquet | Brabham • BMW | 01:45.407 | 01:40.980 | 01:40.980 | 143.422 km/h | |
| 2 | 2 | 7 | Alain Prost | McLaren • TAG Porsche | 01:45.717 | 01:41.640 | 01:41.640 | +00.660 (+0.654%) | +00.660 |
| 3 | 3 | 12 | Nigel Mansell | Lotus • Renault | 01:45.130 | 01:42.172 | 01:42.172 | +01.192 (+1.180%) | +00.532 |
| 4 | 4 | 27 | Michele Alboreto | Ferrari | 01:47.719 | 01:42.246 | 01:42.246 | +01.266 (+1.254%) | +00.074 |
| 5 | 5 | 11 | Elio de Angelis | Lotus • Renault | 01:47.316 | 01:42.434 | 01:42.434 | +01.454 (+1.440%) | +00.188 |
| 6 | 6 | 16 | Derek Warwick | Renault | 01:47.341 | 01:42.637 | 01:42.637 | +01.657 (+1.641%) | +00.203 |
| 7 | 7 | 19 | Ayrton Senna | Toleman • Hart | 01:47.188 | 01:42.651 | 01:42.651 | +01.671 (+1.655%) | +00.014 |
| 8 | 8 | 23 | Eddie Cheever | Alfa Romeo | 01:47.347 | 01:43.065 | 01:43.065 | +02.085 (+2.065%) | +00.414 |
| 9 | 9 | 15 | Patrick Tambay | Renault | 01:46.426 | 01:43.289 | 01:43.289 | +02.309 (+2.287%) | +00.224 |
| 10 | 10 | 8 | Niki Lauda | McLaren • TAG Porsche | 01:43.484 | 01:43.484 | 01:43.484 | +02.504 (+2.480%) | +00.195 |
| 11 | 11 | 3 | Martin Brundle | Tyrrell • Ford Cosworth | 01:43.754 | ||||
| 12 | 12 | 26 | Andrea de Cesaris | Ligier • Renault | 01:46.834 | 01:43.998 | 01:43.998 | +03.018 (+2.989%) | +00.514 |
| 13 | 13 | 18 | Thierry Boutsen | Arrows • BMW | 01:47.866 | 01:44.063 | 01:44.063 | +03.083 (+3.053%) | +00.065 |
| 14 | 14 | 14 | Manfred Winkelhock | ATS • BMW | 01:47.303 | 01:44.228 | 01:44.228 | +03.248 (+3.216%) | +00.165 |
| 15 | 15 | 28 | René Arnoux | Ferrari | 01:46.805 | 01:44.748 | 01:44.748 | +03.768 (+3.731%) | +00.520 |
| 16 | 16 | 4 | Stefan Bellof | Tyrrell • Ford Cosworth | 01:44.940 | ||||
| 17 | 17 | 20 | Johnny Cecotto | Toleman • Hart | 01:49.644 | 01:45.231 | 01:45.231 | +04.251 (+4.210%) | +00.483 |
| 18 | 18 | 25 | François Hesnault | Ligier • Renault | 01:49.697 | 01:45.419 | 01:45.419 | +04.439 (+4.396%) | +00.188 |
| 19 | 19 | 5 | Jacques Laffite | Williams • Honda | 01:47.610 | 01:46.225 | 01:46.225 | +05.245 (+5.194%) | +00.806 |
| 20 | 20 | 9 | Philippe Alliot | RAM • Hart | 01:51.031 | 01:46.333 | 01:46.333 | +05.353 (+5.301%) | +00.108 |
| 21 | 21 | 6 | Keke Rosberg | Williams • Honda | 01:47.919 | 01:46.495 | 01:46.495 | +05.515 (+5.461%) | +00.162 |
| 22 | 22 | 17 | Marc Surer | Arrows • Ford Cosworth | 06:22.502 | 01:46.626 | 01:46.626 | +05.646 (+5.591%) | +00.131 |
| 23 | 23 | 2 | Teo Fabi | Brabham • BMW | 01:51.165 | 01:47.335 | 01:47.335 | +06.355 (+6.293%) | +00.709 |
| 24 | 24 | 10 | Jonathan Palmer | RAM • Hart | 01:51.493 | 01:47.743 | 01:47.743 | +06.763 (+6.697%) | +00.408 |
| 25 | 25 | 22 | Riccardo Patrese | Alfa Romeo | 01:47.974 | 01:48.230 | 01:47.974 | +06.994 (+6.926%) | +00.231 |
| 26 | 26 | 24 | Piercarlo Ghinzani | Osella • Alfa Romeo | 01:49.141 | 01:48.865 | 01:48.865 | +07.885 (+7.808%) | +00.891 |
| 27 | 21 | Huub Rothengatter | Spirit • Ford Cosworth | 01:53.625 | 01:49.955 | 01:49.955 | +08.975 (+8.888%) | +01.090 |