Detroit Street Circuit · 24 June 1984
Nelson Piquet won the 1984 Detroit Grand Prix for Brabham from 1st on the grid, 32.638s ahead of Elio de Angelis. Teo Fabi gained the most places, from 23rd on the grid to 3rd.
| Pos | Team | Points Breakdown | Pts | |
|---|---|---|---|---|
| 1 | Brabham Piquet 9 + Fabi 4 | Piquet 9 + Fabi 4 | 13 | |
| 2 | Team Lotus de Angelis 6 + Mansell 0 | de Angelis 6 + Mansell 0 | 6 | |
| 3 | McLaren Prost 3 + Lauda 0 | Prost 3 + Lauda 0 | 3 | |
| 4 | Williams Laffite 2 + Rosberg 0 | Laffite 2 + Rosberg 0 | 2 | |
| 5 | Tyrrell Brundle 0 + Bellof 0 | Brundle 0 + Bellof 0 | 0 | |
| 6 | Ferrari Alboreto 0 + Arnoux 0 | Alboreto 0 + Arnoux 0 | 0 | |
| 7 | Renault Warwick 0 + Tambay 0 | Warwick 0 + Tambay 0 | 0 | |
| 8 | RAM Alliot 0 + Palmer 0 | Alliot 0 + Palmer 0 | 0 | |
| 9 | Arrows Boutsen 0 + Surer 0 | Boutsen 0 + Surer 0 | 0 | |
| 10 | Ligier de Cesaris 0 + Hesnault 0 | de Cesaris 0 + Hesnault 0 | 0 | |
| 11 | Toleman Cecotto 0 + Senna 0 | Cecotto 0 + Senna 0 | 0 | |
| 12 | Alfa Romeo Cheever 0 + Patrese 0 | Cheever 0 + Patrese 0 | 0 | |
| 13 | Osella Ghinzani 0 | Ghinzani 0 | 0 | |
| 14 | ATS Winkelhock 0 | Winkelhock 0 | 0 |
| Pos | Driver | Team | Race time / Gap | Laps | Stops | Pts | |
|---|---|---|---|---|---|---|---|
| 1 | Nelson Piquet Brabham | Brabham | 1:55:41.842 | 63 | — | 9 | |
| 2 | Elio de Angelis Team Lotus | Team Lotus | +32.638s | 63 | — | 6 | |
| 3 | Teo Fabi Brabham | Brabham | +1:26.528 | 63 | — | 4 | |
| 4 | Alain Prost McLaren | McLaren | +1:55.258 | 63 | — | 3 | |
| 5 | Jacques Laffite Williams | Williams | +1 Lap | 62 | — | 2 | |
| DSQ | Martin Brundle Tyrrell | Tyrrell | DSQ | 63 | — | — | |
| DNF | Michele Alboreto Ferrari | Ferrari | DNF Engine | 49 | — | — | |
| DNF | Keke Rosberg Williams | Williams | DNF Turbo | 47 | — | — | |
| DNF | Derek Warwick Renault | Renault | DNF Gearbox | 40 | — | — | |
| DSQ | Stefan Bellof Tyrrell | Tyrrell | DSQ | 33 | — | — | |
| DNF | Patrick Tambay Renault | Renault | DNF Transmission | 33 | — | — | |
| DNF | Philippe Alliot RAM | RAM | DNF Brakes | 33 | — | — | |
| DNF | Niki Lauda McLaren | McLaren | DNF Electrical | 33 | — | — | |
| DNF | Nigel Mansell Team Lotus | Team Lotus | DNF Gearbox | 27 | — | — | |
| DNF | Thierry Boutsen Arrows | Arrows | DNF Engine | 27 | — | — | |
| DNF | Andrea de Cesaris Ligier | Ligier | DNF Overheating | 24 | — | — | |
| DNF | Johnny Cecotto Toleman | Toleman | DNF Clutch | 23 | — | — | |
| DNF | Eddie Cheever Alfa Romeo | Alfa Romeo | DNF Engine | 21 | — | — | |
| DNF | Ayrton Senna Toleman | Toleman | DNF Accident | 21 | — | — | |
| DNF | Riccardo Patrese Alfa Romeo | Alfa Romeo | DNF Spun off | 20 | — | — | |
| DNF | François Hesnault Ligier | Ligier | DNF Accident | 3 | — | — | |
| DNF | Piercarlo Ghinzani Osella | Osella | DNF Accident | 3 | — | — | |
| DNF | René Arnoux Ferrari | Ferrari | DNF Accident | 2 | — | — | |
| DNF | Jonathan Palmer RAM | RAM | DNF Tyre | 2 | — | — | |
| DNF | Manfred Winkelhock ATS | ATS | DNF Engine | 0 | — | — | |
| DNF | Marc Surer Arrows | Arrows | DNF Accident | 0 | — | — |