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The United States Auto Club (USAC) is one of the sanctioning bodies of auto racing in the United States. From 1956 to 1979, USAC sanctioned the United States National Championship, and from 1956 to 1997 the organization sanctioned the Indianapolis 500. Today, USAC serves as the sanctioning body for a number of racing series, including the Silver Crown Series, National Sprint Cars, National Midgets, Speed2 Midget Series, .25 Midget Series, Stadium Super Trucks, and Pirelli World Challenge. Seven-time USAC champion Levi Jones is USAC's Competition Director.
Sprint cars are high-powered open-wheel race cars, designed primarily for the purpose of running on short oval or circular dirt or paved tracks. Historically known simply as "big cars," distinguishing them from "midget cars," sprint car racing is popular primarily in the United States and Canada, as well as in Australia, New Zealand, and South Africa.
Dirt track racing is a form of motorsport held on clay or dirt surfaced oval race tracks often used for thoroughbred horse racing. Dirt track racing started in the United States before World War I and became widespread during the 1920s and 1930s using both automobiles and motorcycles. Two different types of race cars dominate — open wheel racers in the Northeast and West and stock cars in the Midwest and South. While open wheel race cars are purpose-built racing vehicles, stock cars can be either purpose-built race cars or street vehicles that have been modified to varying degrees. There are hundreds of local and regional racetracks throughout the nation. The sport is also popular in Australia, New Zealand, Canada, South Africa and the United Kingdom.
American open-wheel car racing, also known as Indy car racing, is a category of professional automobile racing in the United States. As of 2022, the top-level American open-wheel racing championship is sanctioned by IndyCar.
The Milwaukee Mile is a 1.015 mi (1.633 km) oval race track in the central United States, located on the grounds of the Wisconsin State Fair Park in West Allis, Wisconsin, a suburb west of Milwaukee. Its grandstand and bleachers seats approximately 37,000 spectators. Paved 69 years ago in 1954, it was originally a dirt track. In addition to the oval, there is a 0.8 mi (1.3 km) road circuit located on the infield.
The 1971 USAC Championship Car season consisted of 12 races, beginning in Rafaela, Argentina on February 28 and concluding in Avondale, Arizona on October 23. The USAC National Champion was Joe Leonard and the Indianapolis 500 winner was Al Unser. For 1971 it was decided that there should be three separate points championships, for paved ovals, dirt ovals, and road courses.
The 1970 USAC Championship Car season consisted of 18 races, beginning in Avondale, Arizona on March 28 and concluding at the same location on November 21. There was also one non-championship event at Pikes Peak, Colorado. The USAC National Champion and Indianapolis 500 winner was Al Unser. After this season, dirt courses did not reappear in the USAC Championship until 1981-82. Road courses after this season did not reappear in the USAC Championship until 1977. The Pikes Peak Auto Hill Climb was the only non-championship event.
The 1956 USAC Championship Car season consisted of 12 races, beginning in Speedway, Indiana, on May 30 and concluding in Phoenix, Arizona, on November 12. There were also three non-championship events. The USAC National Champion was Jimmy Bryan and the Indianapolis 500 winner was Pat Flaherty. This was the first year that the National Championship was sanctioned by the USAC, after the withdrawal of the AAA from all forms of racing after the 1955 season.
The 1962 USAC Championship Car season consisted of 13 races, beginning in Trenton, New Jersey on April 8 and concluding in Phoenix, Arizona on November 18. There was also one non-championship event at Pikes Peak, Colorado. The USAC National Champion and Indianapolis 500 winner was Rodger Ward. Hugh Randall was killed in the first Langhorne 100 at Langhorne Speedway; he was 29 years old.
The 1957 USAC Championship Car season consisted of 13 races, beginning in Speedway, Indiana on May 30 and concluding in Phoenix, Arizona on November 11. There were also five non-championship events. The USAC National Champion was Jimmy Bryan and the Indianapolis 500 winner was Sam Hanks. Keith Andrews was killed in crash while practicing for the Indianapolis 500; he was 36 years old.
The 1958 USAC Championship Car season consisted of 13 races, beginning in Trenton, New Jersey on March 30 and concluding in Phoenix, Arizona on November 11. There were also five non-championship events. The USAC National Champion was Tony Bettenhausen and the Indianapolis 500 winner was Jimmy Bryan. There were three fatalities during the season. Pat O'Connor lost his life in a first lap accident during the Indy 500. Art Bisch died of injuries suffered during the race at Lakewood Speedway. Jimmy Reece was killed in a late-race incident at the second Trenton 100.
The 1959 USAC Championship Car season consisted of 13 races, beginning in Daytona Beach, Florida on April 4 and concluding in Sacramento, California on October 25. There were also three non-championship events. The USAC National Champion and Indianapolis 500 winner was Rodger Ward. In this tragic season 7 fatal accidents occurred. During the pre-season, Marshall Teague was fatally injured in a crash at Daytona. He was 37 years old. In the first race of the season at Daytona, 34-year-old George Amick was killed in an accident on the last lap. In the second race of the season at Trenton, Dick Linder was killed; he was 36 years old. The third race of the season, the Indy 500, had two fatalities. On May 2, Jerry Unser was killed in a practice accident, and on May 19 death Bob Cortner was also killed in a practice accident. On July 19 at Mechanicsburg in the Indianapolis Sweepstakes non-championship race Van Johnson was killed in an accident; he was 32 years old. On August 30, 32-year-old Ed Elisian was killed at the Milwaukee Mile. The 1959 season could be considered one of the most tragic seasons in American open-wheel car history.
The 1960 USAC Championship Car season consisted of 12 races, beginning in Trenton, New Jersey on April 10 and concluding in Phoenix, Arizona on November 20. There were also two non-championship events at Langhorne, Pennsylvania, and Pikes Peak, Colorado. This was the final year that the Indianapolis 500 was a part of the Formula One World Championship. The USAC National Champion was A. J. Foyt and the Indianapolis 500 winner was Jim Rathmann. Three time USAC/AAA National Champion, and 1958 Indianapolis 500 winner Jimmy Bryan, was killed in an accident during the Langhorne 100 at Langhorne Speedway; he was 34 years old.
The 1961 USAC Championship Car season consisted of 12 races, beginning in Trenton, New Jersey on April 9 and concluding in Phoenix, Arizona on November 19. There was also one non-championship event at Pikes Peak, Colorado. The USAC National Champion and Indianapolis 500 winner was A. J. Foyt. The season was marred by the deaths of 1951 and 1958 season champion Tony Bettenhausen at the Indianapolis Motor Speedway and Al Keller at Phoenix.
The 1963 USAC Championship Car season consisted of 12 races, beginning in Trenton, New Jersey on April 21 and concluding in Phoenix, Arizona on November 17. There was also one non-championship event at Pikes Peak, Colorado. The USAC National Champion was A. J. Foyt, and the Indianapolis 500 winner was Parnelli Jones. Jim Clark's win at Milwaukee in August marked the first win for a rear-engined car in Champ Car competition.
The 1964 USAC Championship Car season consisted of 13 races, beginning in Avondale, Arizona on March 22 and concluding at the same location on November 22. There was also one non-championship event at Pikes Peak, Colorado. The USAC National Champion and Indianapolis 500 winner was A. J. Foyt. At Indianapolis in the 500 mile race Eddie Sachs and Dave MacDonald were killed during lap 2 of the race; Sachs was 37 years old, and MacDonald was 27. In the Tony Bettenhausen Memorial at Springfield, Bill Horstmeyer died during the race; he was 34 years old. In November, five days after the season ended, Bobby Marshman died in a testing accident at Phoenix; he was 28 years old.
The 1965 USAC Championship Car season consisted of 18 races, beginning in Avondale, Arizona on March 28 and concluding at the same location on November 21. This season was notable for the Hoosier Grand Prix, the first Championship Car event held on a road course since the 1937 Vanderbilt Cup. The USAC National Champion was Mario Andretti and the Indianapolis 500 winner was Jim Clark.
The 1966 USAC Championship Car season consisted of 16 races, beginning in Avondale, Arizona on March 20 and concluding at the same location on November 20. There was also one non-championship event at Fuji Speedway in Japan. The USAC National Champion was Mario Andretti, and the Indianapolis 500 winner was Graham Hill. At Indianapolis, Chuck Rodee was killed while qualifying for the 1966 Indianapolis 500. Also of note was the end of the career of two time 500 and two time National Champion Rodger Ward as he ran the final three races of his IndyCar career at the start of the season which included the final IndyCar victory of his career at Trenton.
The 1968 USAC Championship Car season consisted of 28 races, beginning in Hanford, California on March 17 and concluding in Riverside, California on December 7. The USAC National Champion and Indianapolis 500 winner was Bobby Unser. Mike Spence died in an accident while practicing for the 1968 Indianapolis 500. Ronnie Duman died of burns suffered during the Rex Mays Classic.
The NASCAR Cup Series is the top racing series of the National Association for Stock Car Auto Racing (NASCAR). The series began in 1949 as the 'Strictly Stock Division', and from 1950 to 1970 it was known as the 'Grand National Division.' In 1971, when the series began leasing its naming rights to the R. J. Reynolds Tobacco Company, it was referred to as the 'NASCAR Winston Cup Series' (1971–2003). A similar deal was made with Nextel in 2003, and it became the 'NASCAR Nextel Cup Series' (2004–2007). Sprint acquired Nextel in 2005, and in 2008 the series was renamed the 'NASCAR Sprint Cup Series' (2008–2016). In December 2016, it was announced that Monster Energy would become the new title sponsor, and the series was renamed the 'Monster Energy NASCAR Cup Series' (2017–2019). In 2019, NASCAR rejected Monster's offer to extend the current naming rights deal beyond the end of the season. NASCAR subsequently announced its move to a new tiered sponsorship model beginning with the 2020 season similar to other US based professional sports leagues, where it was simply known as the 'NASCAR Cup Series', with the sponsors of the series being called Premier Partners. The four Premier Partners are Busch Beer, Coca-Cola, GEICO, and Xfinity.