USA-West GP: John Watson, McLaren MP4-1C Ford, leads Niki Lauda, McLaren MP4-1C Ford, Nelson Piquet, Brabham BT52 BMW, Manfred Winkelhock, ATS D6 BMW, Eliseo Salazar, RAM 01 Ford, and Raul Boesel, Ligier JS21 Ford.
John Watson, McLaren MP4-1C Ford, leads Niki Lauda, McLaren MP4-1C Ford, Nelson Piquet, Brabham BT52 BMW, Manfred Winkelhock, ATS D6 BMW, Eliseo Salazar, RAM 01 Ford, and Raul Boesel, Ligier JS21 Ford.