From 1956 to 1978, USAC Championship Car seasons featured the top teams and drivers in U.S. open-wheel racing. Until 1971, the Championship contained road courses, ovals, dirt courses, and, on occasion, a hill climb. Thereafter, the schedule consisted mainly of paved ovals. In 1979, the majority of car owners left USAC to race in the Indy Car World Series, sanctioned by the Sports Car Club of America and CART. This led to a decline in the number of events in the schedule, and by the 1984–85 season, the Championship comprised only one race, the Indianapolis 500. The era of USAC Championship Cars concluded with the formation of the Indy Racing League (IRL) in 1995, which was sanctioned by USAC until June 1997 when the IRL assumed officiating duties after the controversial finish of the 81st Indianapolis 500 and the scoring mistake that marred the following event. [1] The most successful driver in USAC Championship Car history was A. J. Foyt with seven National Championships and four Indianapolis 500 victories. Foyt competed in every season from 1957 to 1992–93.
# | Season | Races | National Champion | Indianapolis 500 | Drivers | Ref | |||
---|---|---|---|---|---|---|---|---|---|
Paved Oval | Road | Total | Ranked | Fatalities | |||||
25 | 1980 | 4 | 1 | 5 | Johnny Rutherford | Johnny Rutherford | 57 | - | [50] [51] |
# | Season | Races | National Champion | Indianapolis 500 | Drivers | Ref | |||
---|---|---|---|---|---|---|---|---|---|
Dirt Oval | Paved Oval | Total | Ranked | Fatalities | |||||
26 | 1981–82 | 3 | 3 | 6 | George Snider | Bobby Unser* | 51 | 1 | [52] [53] |
Gordon Johncock* | |||||||||
27 | 1982–83 | 3 | 1 | 4 | Tom Sneva | 39 | - | [54] [55] | |
28 | 1983–84 | 1 | 1 | 2 | Rick Mears | 39 | - | [56] [57] | |
29 | 1984–85 | - | 1 | 1 | Danny Sullivan | 32 | - | [58] | |
30 | 1985–86 | - | 1 | 1 | Bobby Rahal | 33 | - | [59] | |
31 | 1986–87 | - | 1 | 1 | Al Unser | 33 | - | [60] | |
32 | 1987–88 | - | 1 | 1 | Rick Mears | 33 | - | [61] | |
33 | 1988–89 | - | 1 | 1 | Emerson Fittipaldi | 33 | - | [62] | |
34 | 1989–90 | - | 1 | 1 | Arie Luyendyk | 33 | - | [63] | |
35 | 1990–91 | - | 1 | 1 | Rick Mears | 33 | - | [64] | |
36 | 1991–92 | - | 1 | 1 | Al Unser Jr. | 33 | 1 | [65] | |
37 | 1992–93 | - | 1 | 1 | Emerson Fittipaldi | 33 | - | [66] | |
38 | 1993–94 | - | 1 | 1 | Al Unser Jr. | 33 | - | [67] | |
39 | 1994–95 | - | 1 | 1 | Jacques Villeneuve | 33 | - | [68] |
* The 1981-82 season included both the 65th and 66th Indianapolis 500 races.
( ) Figures in parentheses denote the number of non-championship races in that season.
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.
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. Competitive events for professional-level, single-seat open-wheel race cars have been conducted under the auspices of various sanctioning bodies since 1902. A season-long, points-based, National Championship of drivers has been officially recognized in 1905, 1916, and since 1920.
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.
The 1991 CART PPG Indy Car World Series season was the 13th national championship season of American open wheel racing sanctioned by CART. The season consisted of 17 races, and one non-points exhibition event. Michael Andretti was the national champion, and the rookie of the year was his younger brother Jeff Andretti.
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 1973 USAC Championship Car season consisted of 16 races, beginning in College Station, Texas on April 7 and concluding in Avondale, Arizona on November 3. The first race of the season, in Avondale, Arizona on March 17, was postponed by rain and eventually cancelled due to infrastructure damage caused by the rain and scheduling conflicts. Bob Criss was killed in a private test at Phoenix before he could enter another event. He was 35 years old. The USAC National Champion was Roger McCluskey and the Indianapolis 500 winner was Gordon Johncock.
The 1974 USAC Championship Car season consisted of 14 races, beginning in Ontario, California on March 3 and concluding in Avondale, Arizona on November 2. The USAC National Champion was Bobby Unser and the Indianapolis 500 winner was Johnny Rutherford. Due to the events of the 1973 Indianapolis 500 significant improvements were made to the cars for safety concerns. Wings were reduced in size, and pop-off valves were added to the turbocharger plenums in order to reduce horsepower and curtail speeds.
The 1975 USAC Championship Car season consisted of 13 races, beginning in Ontario, California on March 2 and concluding in Avondale, Arizona on November 9. The USAC National Champion was A. J. Foyt and the Indianapolis 500 winner was Bobby Unser.
The 1976 USAC Championship Car season consisted of 13 races, beginning in Avondale, Arizona on March 14 and concluding at the same location on November 7. The USAC National Champion was Gordon Johncock and the Indianapolis 500 winner was Johnny Rutherford.
The 1977 USAC Championship Car season consisted of 14 races, beginning in Ontario, California on March 6 and concluding in Avondale, Arizona on October 29. The USAC National Champion was Tom Sneva and the Indianapolis 500 winner was A. J. Foyt. The schedule included a road course for the first time since 1970.
The 1978 USAC Championship Car season consisted of 18 races, beginning at Phoenix on March 18 and concluding at the same location on October 28. The USAC National Champion was Tom Sneva and the Indianapolis 500 winner was Al Unser. This was the last year before the first USAC/CART "Split". By winning the Indianapolis 500, Pocono 500, and California 500, Al Unser swept the Indy car "Triple Crown", the only driver in history to do so.
The 1979 USAC Championship Car season consisted of seven races, beginning in Ontario, California on March 25 and concluding in West Allis, Wisconsin on August 12. The USAC National Champion was A. J. Foyt and the Indianapolis 500 winner was Rick Mears. With the exception of the Indianapolis 500, most top drivers instead competed in races sanctioned by CART.
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 1982–83 USAC Championship Car season consisted of four races, beginning in Springfield, Illinois, on August 14, 1982, and concluding in Speedway, Indiana, on May 29, 1983. The USAC National Champion and Indianapolis 500 winner was Tom Sneva.
The 1983–84 USAC Championship Car season consisted of two races, beginning in Du Quoin, Illinois, on September 5, 1983, and concluding in Speedway, Indiana, on May 27, 1984. The USAC National Champion and Indianapolis 500 winner was Rick Mears. This was the last year that the Championship comprised more than one race.
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 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.