Road America: Jean-Louis Ricci / Gianpiero Moretti, Momo/Gebhardt Racing, Porsche 962 C, leads John Andretti / Bob Wollek, Busby Racing, Porsche 962 C.
Jean-Louis Ricci / Gianpiero Moretti, Momo/Gebhardt Racing, Porsche 962 C, leads John Andretti / Bob Wollek, Busby Racing, Porsche 962 C.