Easley and Douglas Grunst (pit crewman) (Jan. 15, 1978) Tim Williamson (Jan. 12, 1980) Rolf Stommelen (April 24, 1983) John Goss (Oct. 17, 1983) Mark Verbofsky (July 1, 1989) Races held at Riverside International Raceway NASCAR Winston Cup Series and Winston West combined races: Motor Trend 500 / Winston Western 500 (1958, 1961, 1964–1987) Budweiser 400 (1963, 1970–1988) USAC Championship Trail (Indycar) Rex Mays 300 (1967–1969) PPG Indy Car World Series: AirCal 500 / L.A. Times 500 / Budweiser 500K (1981–1983) Los Angeles Times Grand Prix of Endurance AMA Superbike Championship (1976–1977, 1982–1984) Formula One: 1960 United States Grand Prix (Unofficial) 24 hours of Riverside, testing the Chevy Corvair The first IROC race was held in October 1973, and the track hosted IROC races intermittently through its lifespan. NHRA drag racing in the mid sixties. SCORE International Off Road World Championships, the last one was held in August 1988. IMSA Car races (SCCA) Regional & National amateur races, and professional (Trans-Am, Can-Am Series) car races Rex Mays 300 AMA motorcycle racing United States Road Race Championship (USRRC) SCCA series for professional racing drivers 1963-1968 (RIR 1964–1965) Riverside Olympic Relay held on July 19, 1964 See also Motorsport Arena Oschersleben, a current German racing circuit with a similar but smaller (3.67 km/2.29 mi) layout Riverside International Automotive Museum References Further reading Riverside Raceway, Palace Of Speed by Dick Wallen Riverside International Raceway by Pete Lyons Motorsport Memorial entry on Rolf Stommelen (2005), motorsportmemorial.org. Retrieved February 1, 2005. Motorsport Memorial entry on Billy Foster (1966), motorsportmemorial.org Articles about Riverside Int'l Raceway: External links Riverside International Automotive Museum (Now Closed) Riverside International Automotive Museum's Annual Film Festival & Gala Riverside International Raceway's Picture Pages from Frank Sheffield, a former RIR corner worker NASCAR track history Motorsport venues in California Defunct drag racing venues Defunct motorsport venues in the United States Defunct sports venues in California Buildings and structures in Riverside, California Sports venues in Riverside, California Sports venues completed in 1957 1957 establishments in California 1989 disestablishments in California Defunct companies based in Greater Los Angeles Champ Car circuits Formula One circuits NASCAR tracks International Race of Champions tracks NASCAR races at Riverside International Raceway IMSA GT Championship circuits United States Grand Prix Demolished sports venues in California Sports venues in the Inland Empire