Daytona 24 Hours
Jim Netterstrom / John Kelly / John Sabel, Ship Sharpe Maintenance, Porsche 911, leads Mario Andretti / Lucien Bianchi, Autodelta S.p.a., Alfa Romeo T33/2, Robert Stoddard / George Drolsom / Marty Gifford / Lewis Williams, Jr., Porsche 911, and Udo Schütz / Nino Vaccarella, Autodelta S.p.a., Alfa Romeo T33/2.