1968 United States Road Racing Championship
Rnd Race Length Circuit Location Date
1 USRRC Mexico City 150 mi ( 240 km ) Autódromo Hermanos Rodríguez Mexico City , Mexico March 31
2 USRRC Riverside 250 km ( 160 mi ) Riverside International Raceway Riverside , California April 28
3 Pimm 's Cup Trophy 150 mi ( 240 km ) Laguna Seca Raceway Monterey , California May 5
4 Vanderbilt Cup 170 mi ( 270 km ) Bridgehampton Race Circuit Bridgehampton , New York May 19
5 Championnat Nord-Americain 2 Hours , 45 Minutes Circuit Mont-Tremblant Saint-Jovite , Quebec June 2
6 Pacific North West Grand Prix 250 km ( 160 mi ) Pacific Raceways Kent , Washington June 30
7 Watkins Glen Sports Car Road Race 200 mi ( 320 km ) Watkins Glen Grand Prix Race Course Watkins Glen , New York July 13
8 Road America 500 500 mi ( 800 km ) Road America Elkhart Lake , Wisconsin July 28
9 USRRC Mid-Ohio 180 mi ( 290 km ) Mid-Ohio Sports Car Course Lexington , Ohio August 18
Schedule
The 1968 United States Road Racing Championship season was the sixth and final season of the Sports Car Club of America's United States Road Racing Championship. It began March 31, 1968, and ended August 18, 1968, after nine races. Mark Donohue won the season championship. The series would be revived thirty years later, but only for two years before becoming the Rolex Sports Car Series.