USA-West GP: Nelson Piquet, Brabham BT49 Ford, leads from René Arnoux, Renault RE20, Patrick Depailler, Alfa Romeo 179, Jan Lammers, ATS D4 Ford, Alan Jones, Williams FW07B Ford, and Bruno Giacomelli, Alfa Romeo 179, at the start while further back Mario Andretti, Lotus 81 Ford, and Jean-Pierre Jarier, Tyrrell 010 Ford, make contact.
Nelson Piquet, Brabham BT49 Ford, leads from René Arnoux, Renault RE20, Patrick Depailler, Alfa Romeo 179, Jan Lammers, ATS D4 Ford, Alan Jones, Williams FW07B Ford, and Bruno Giacomelli, Alfa Romeo 179, at the start while further back Mario Andretti, Lotus 81 Ford, and Jean-Pierre Jarier, Tyrrell 010 Ford, make contact.