24 Hours of Le Mans: Bob Wollek / Jörgen Barth / Jacky Ickx, Martini Racing Porsche System, Porsche 936/78 - Porsche 935/73 leads Guy Frèquelin / Jean Ragnotti / Josè Dolhem / Jean-Pierre Jabouille, Equipe Renault Elf Sport Calberson, Renault-Alpine A442A.
Bob Wollek / Jörgen Barth / Jacky Ickx, Martini Racing Porsche System, Porsche 936/78 - Porsche 935/73 leads Guy Frèquelin / Jean Ragnotti / Josè Dolhem / Jean-Pierre Jabouille, Equipe Renault Elf Sport Calberson, Renault-Alpine A442A.