United States GP: Mario Andretti, Lotus 49B Ford, leads Jackie Stewart, Matra MS10 Ford, Chris Amon, Ferrari 312, and Graham Hill, Lotus 49B Ford, at the start.
Mario Andretti, Lotus 49B Ford, leads Jackie Stewart, Matra MS10 Ford, Chris Amon, Ferrari 312, and Graham Hill, Lotus 49B Ford, at the start.