Round 7

Detroit

Weekend schedule

Pos	No.	Driver	Team	Lap	Time	Avg. Speed
01	6	Nelson Piquet	Williams	41	1:41.233	143.064
02	12	Ayrton Senna	Lotus	42	1:41.981	142.015
03	25	René Arnoux	Ligier	46	1:42.921	140.718
04	5	Nigel Mansell	Williams	29	1:43.051	140.540
05	1	Alain Prost	McLaren	39	1:43.293	140.211
06	26	Jacques Laffite	Ligier	40	1:43.416	140.044
07	27	Michele Alboreto	Ferrari	54	1:43.619	139.770
08	7	Riccardo Patrese	Brabham	23	1:44.698	138.329
09	28	Stefan Johansson	Ferrari	21	1:44.864	138.110
10	2	Keke Rosberg	McLaren	12	1:45.254	137.599
11	11	Johnny Dumfries	Lotus	38	1:45.434	137.364
12	16	Eddie Cheever	Lola	27	1:45.836	136.842
13	20	Gerhard Berger	Benetton	4	1:45.914	136.741
14	8	Derek Warwick	Brabham	52	1:46.136	136.455
15	15	Alan Jones	Lola	19	1:46.579	135.888
16	23	Andrea de Cesaris	Minardi	36	1:46.621	135.834
17	14	Jonathan Palmer	Zakspeed	52	1:46.756	135.663
18	4	Philippe Streiff	Tyrrell	47	1:46.869	135.519
19	18	Thierry Boutsen	Arrows	40	1:47.005	135.347
20	19	Teo Fabi	Benetton	7	1:47.122	135.199
21	3	Martin Brundle	Tyrrell	12	1:47.819	134.325
22	17	Christian Danner	Arrows	18	1:49.499	132.264
23	21	Piercarlo Ghinzani	Osella	5	1:51.711	129.645
24	24	Alessandro Nannini	Minardi	2	1:53.122	128.028
25	22	Allen Berg	Osella	4	1:53.507	127.594