The Big O Indianapolis of the West | |
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Location | Ontario, California |
Capacity | 180,000[1] |
Broke ground | September 25, 1968[2] |
Opened | August 1970 |
Closed | December 17, 1980 |
Construction cost | US$25.5 million[1] |
Architect | Kite & Overpeck A.I.A. Architects/John Hugenholtz of Zandvoort, Holland and Michael Parker of Portland, Oregon. |
Former names | None |
Major events | USAC Championship Car California 500 (1970–1978) CART Championship Car California 500 (1979–1980) National Hot Rod Association Mattel Hot Wheels Super Nationals drag race NASCAR Winston Cup Los Angeles Times 500 (1971-1972, 1974–1980) Formula One/Formula 5000 Questor Grand Prix (1971) |
Oval | |
Length | 2.5 miles (4.023 km) |
Banking | Turns – 9 degrees° |
Infield Road Course | |
Surface | Asphalt |
Length | 3.194 miles (5.141 km) |
Turns | 20 |
Race lap record | 1:42.777 (![]() |
Ontario Motor Speedway was a motorsport venue located in Ontario, California. It was the first and only automobile racing facility built to accommodate major races sanctioned by all of the four dominant racing sanctioning bodies: USAC (and now IndyCar Series) for open-wheel oval car races; NASCAR for a 500-mile (800 km) oval stock car races; NHRA for drag races; and FIA for Formula One road course races. Additionally, several motorcycle races were held at the track. Constructed in less than two years,[2] the track opened in August 1970 and was considered state of the art at the time.[3][4]
The first full year of racing included the Indy-style open wheel Inaugural California 500 on September 6, 1970; the Miller High Life 500 stock car race on February 28, 1971, the NHRA Super Nationals drag race on November 21, 1970 and the Questor Grand Prix on March 28, 1971. Each of these inaugural races drew attendance second only to their established counterparts, the USAC Indianapolis 500, the NASCAR Daytona 500, the NHRA U.S. Nationals, and the U.S. Formula One race at Watkins Glen.
The track was purchased for real estate development by Chevron Land Company in late 1980[5] and demolished at a cost of $3 million in 1981. It is estimated that the 800-acre (3.2 km2) facility, with 155,000 permanent seats and an air-conditioned private stadium club would have a replacement cost in 2009 of over $350 million.[citation needed]
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