GRAND PRIX RESULTS: UNITED STATES GP, 1985

United States GP
Detroit
June 23, 1985

63 Laps, 4.023 km

There was only a week between the Canadian and Detroit races but there was a big announcement with Ford agreeing to supply its turbocharged engine to Carl Haas's Beatrice team. The canceled Belgian GP was also rescheduled for September.

The entry was the same as in Montreal with Ayrton Senna on pole in his Lotus-Renault ahead of Nigel Mansell's Williams-Honda and Michele Alboreto's Ferrari. Alain Prost was fourth in his McLaren-TAG ahead of Keke Rosberg (Williams-Honda), Derek Warwick (Renault), Eddie Cheever (Alfa Romeo), Elio de Angelis (Lotus-Renault), Stefan Johansson (Ferrari) and Nelson Piquet (Brabham-BMW).

Senna took the lead at the start while Rosberg drove a stunning opening lap to pass Mansell, Prost and the slow-starting Alboreto. Senna soon began to struggle because of tire problems and on the eighth lap Rosberg took the lead. Senna went into the pits and dropped right back down the order, leaving the two Williams-Hondas to run 1-2. Alboreto was third having overtaken Prost but he soon fell behind de Angelis and when Mansell spun on lap 20 the Lotus moved to second, while Mansell rejoined under pressure from Johansson and soon fell behind the Swede as well. Prost disappeared at the same time with a spin and Mansell followed while Martin Brundle (Tyrrell) found his car to be very competitive and having overtaken Alboreto, profited from Mansell's disappearance to run fourth. De Angelis was then forced into the pits when he snagged a front wing while going through backmarkers. He was no longer a force. Alboreto in the meantime has repassed Brundle and on lap 30 he collided with backmarker Philippe Alliot's RAM. This meant that Stefan Bellof (Tyrrell) was up to fourth. And so it remained until lap 50 when Rosberg pitted to get some paper out of his radiators. He rejoined with new tires just ahead of Johansson and soon motored away again. Senna was making good progress now and challenging Alboreto for third but on lap 52 Senna made a mistake while trying to get ahead and crashed. Thus Rosberg came home the winner ahead of Johansson, Alboreto, Bellof and de Angelis with sixth place going to Piquet.

POSNODRIVERENTRANTLAPSTIME/RETIREMENTQUAL POS
Keke Rosberg Williams-Honda  63 1h55m39.851s  
28 Stefan Johansson Ferrari  63 1h56m37.400s  
27 Michele Alboreto Ferrari  63 1h56m43.021s  
Stefan Bellof Tyrrell-Cosworth  63 1h56m46.076s  19 
11 Elio de Angelis Lotus-Renault  63 1h57m06.817s  
Nelson Piquet Brabham-BMW  62  10 
18 Thierry Boutsen Arrows-BMW  62  21 
Marc Surer Brabham-BMW  62  11 
23 Eddie Cheever Alfa Romeo  61  
10 25 Andrea de Cesaris Ligier-Renault  61  17 
11 17 Gerhard Berger Arrows-BMW  60  24 
12 26 Jacques Laffite Ligier-Renault  58  16 
12 Ayrton Senna Lotus-Renault  51 Accident 
Martin Brundle Tyrrell-Cosworth  30 Accident 18 
10 Philippe Alliot RAM-Hart  27 Accident 23 
Nigel Mansell Williams-Honda  26 Accident 
Alain Prost McLaren-TAG Porsche  19 Brakes/accident 
22 Riccardo Patrese Alfa Romeo  19 Electrics 14 
16 Derek Warwick Renault  18 Transmission 
15 Patrick Tambay Renault  15 Accident 15 
29 Pierluigi Martini Minardi-Cosworth  11 Turbo 25 
Niki Lauda McLaren-TAG Porsche  10 Brakes 12 
19 Teo Fabi Toleman-Hart  Clutch 13 
Manfred Winkelhock RAM-Hart  Turbo 20 
24 Piercarlo Ghinzani Osella-Alfa Romeo  Accident 22 

United States GP, Detroit, June 23, 1985, Round: 6, Race Number: 410

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