Riverside International Raceway (Sometimes known as RIR or Riverside Raceway) was a race track or road course in Riverside, California. The track was in operation from September 22, 1957, to July 2, 1989. The original course design proved to be dangerous, and it was partially reconfigured in 1969.
The track was built to accommodate several different races. By closing off certain sections of the track, the route drivers had to follow could be alte...
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Riverside International Raceway (Sometimes known as RIR or Riverside Raceway) was a race track or road course in Riverside, California. The track was in operation from September 22, 1957, to July 2, 1989. The original course design proved to be dangerous, and it was partially reconfigured in 1969.
The track was built to accommodate several different races. By closing off certain sections of the track, the route drivers had to follow could be altered. The three options on Riverside Raceway were the long course (3.27 miles (5.26 km)), the short course (2.5 miles (4.0 km)), and the NASCAR (2.62 miles (4.22 km)) course. The original racetrack had a 1.1-mile (1.8 km) backstretch from 1957 to 1968. When the track was redesigned in 1969, turn 9 was made wide and a dogleg was added to scrub speed from the race cars.
Before a racing event at RIR, track crews added traffic pylons to close off sections of the track. Track courses are shown in the illustrations below (the 1957 course is in black,...
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