Mario Andretti in his Ferrari took top honors and set fastest lap of the race in Kyalami, South Africa . Jackie Stewart sat on pole and finished second in his Tyrrell with Clay Regazzoni coming in third with the other Ferrari. This was Andretti's first win in F1.
A.J. Foyt won the 200 mile Indy Car race on the 2.5 mile Ontario Motor Speedway. Foyt averaged 154.073 mph in his Foyt/Coyote. The Indy Car opener saw new cars, the new Cosworth engine and new USAC rules requiring a pop-off valve for qualifying runs. Powered by one of the new Cosworth motors, Johnny Rutherford put his McLaren on the pole at 197.36 mph, a full second and 4 mph faster than 2nd fast Tom Sneva in Roger Penske's McLaren-Cosworth. Alan Jones qualified the Theodore Racing McLaren, but uncomfortable, was replaced by Steve Krisiloff for the race.
Neil Bonnett won the Goodwrench 500 over Lake Speed at the North Carolina Speedway, Rockingham, NC.