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. 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.
American open-wheel car racing, also known as Indy car racing, is a category of professional automobile racing in the United States. As of 2024, the top-level American open-wheel racing championship is sanctioned by IndyCar. Competitive events for professional-level, open-wheel race cars have been conducted under the auspices of various sanctioning bodies, tracing its roots as far back as 1902. A season-long, points-based, National Championship of drivers has been officially recognized in 1905, 1916, and each year since 1920. As such, for many years, the category of racing was known as Championship Car racing. That name has been permanently retired, and the term Indy car racing has become the preferred moniker.
Nazareth Speedway is a defunct auto racing facility in Lower Nazareth Township in the Lehigh Valley region of eastern Pennsylvania, which operated from 1910 to 2004. The racing facility operated in two distinct course configurations. In its early years, it was a dirt twin oval layout. In 1987, it was reopened as a paved tri-oval that measured just slightly under 1 mile.
Eldora Speedway is a 0.5 mi (804.672 m) high-banked clay dirt oval. Located north of Rossburg, Ohio in the village of New Weston, Ohio, its website claims capacity for 22,886 spectators in the permanent grandstand, and unlimited admittance for the grass hillside spectator area. The permanent grandstand and VIP suite seats make it the largest sports stadium in the Dayton, Ohio-region according to the Dayton Business Journal.
The 1984 CART PPG Indy Car World Series season, the sixth in the CART era of U.S. open-wheel racing, consisted of 16 races, beginning in Long Beach, California on March 31 and concluding in Las Vegas, Nevada on November 10. The PPG Indy Car World Series Drivers' Champion was Mario Andretti and the Indianapolis 500 winner was Rick Mears. Rookie of the Year was Roberto Guerrero. The 68th Indianapolis 500 was sanctioned by the USAC, but counted in the CART points standings.
Trenton Speedway was a racing facility located near Trenton, New Jersey at the New Jersey State Fairgrounds. Races for the United States' premier open-wheel and full-bodied racing series of the times were held at Trenton Speedway.
There has been auto racing in Illinois for almost as long as there have been automobiles. Almost every type of motorsport found in the United States can be found in Illinois. Both modern and historic tracks exist in Illinois, including NASCAR's Chicagoland Speedway and Gateway International Speedway. Notable drivers from Illinois include Danica Patrick, Tony Bettenhausen, and Fred Lorenzen.
Lakewood Speedway was a race track located south of Atlanta, Georgia, in Lakewood, just north of the eastern arm of Langford Parkway. The track held many kinds of races between 1919 and 1979, including events sanctioned by AAA/USAC, IMCA, and NASCAR. It was a one-mile (1.6 km) dirt track which was located adjacent to Lakewood Fairgrounds. Lakewood Speedway was considered the "Indianapolis of the South" as it was located in the largest city in the Southern United States and it held an annual race of the Indy cars.
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 1972 USAC Championship Car season consisted of ten races, beginning in Avondale, Arizona on March 18 and concluding at the same location on November 4. The USAC National Champion was Joe Leonard and the Indianapolis 500 winner was Mark Donohue. Jim Malloy was killed at Indianapolis in practice; he was 40 years old.
The 1980 USAC Championship Car season consisted of five races, beginning in Ontario, California on April 13 and concluding in Lexington, Ohio on July 13. The USAC National Champion and Indianapolis 500 winner was Johnny Rutherford.
The 1981–82 USAC Championship Car season consisted of six races, beginning in Speedway, Indiana, on May 24, 1981, and concluding at the same location on May 30, 1982. The USAC National Champion was George Snider. The season included two Indianapolis 500 races. The 1981 winner was Bobby Unser, while the 1982 winner was Gordon Johncock. The schedule included dirt courses for the first time since 1970.
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. Bettenhausen became the first USAC champion without a single race win during the season until Tom Sneva did so 20 years later.
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 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.
Missouri State Fair Speedway is a half-mile (.805 km) dirt oval race track located at the Missouri State Fair grounds in Sedalia, Missouri. The track was built along with the fairgrounds in 1901 as a one-mile (1.6-km) horse racing track. The first auto races were held in 1914 and 1915. Cars returned from 1935 until 1941, and again from 1946 until 1985 and 1989 until the mile was abandoned in 1998. One USAC National Championship race was held on the mile in 1970, won by Al Unser.
