Claim: The 1973 Italian Grand Prix that was held at Monza was the 13th of 15 races and Ronnie Peterson came in first followed by Emerson Pittipaidi.
Evidence: It was race 13 of 15 in both the 1973 World Championship of Drivers and the 1973 International Cup for Formula One Manufacturers. Pos Sweden Ronnie Peterson Brazil Emerson Fittipaldi