Claim: Jim Clark, driving a Lotus-Climax, was the champion of the 1964 United States Grand Prix (held on May 4, 1964 at the Watkins Glen Grand Prix Race Course); followed by John Surtees in second place with a time of 1:12.78.
Evidence: United_Kingdom Graham Hill The 1964 United States Grand Prix was a Formula One motor race held on October 4, 1964, at the Watkins Glen Grand Prix Race Course in Watkins Glen, New York.