United States GP: Ronnie Peterson, March 711 Ford leads John Surtees, Surtees TS9A Ford, Tim Schenken, Brabham BT33 Ford and Peter Gethin, BRM P160.
Ronnie Peterson, March 711 Ford leads John Surtees, Surtees TS9A Ford, Tim Schenken, Brabham BT33 Ford and Peter Gethin, BRM P160.