The 34th International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway on Tuesday, May 30, 1950. The event was sanctioned by the AAA and served as the premier event on the calendar of the 1950 AAA National Championship Trail.
The 35th International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway on Wednesday, May 30, 1951. The event was part of the 1951 AAA National Championship Trail, and was also race 2 of 8 in the 1951 World Championship of Drivers. For the second year in a row, no European Formula One-based teams entered the race.
The 36th International 500-Mile Sweepstakes was a motor race held at the Indianapolis Motor Speedway on Friday, May 30, 1952. It was the opening race of the 1952 AAA National Championship Trail and was also race 2 of 8 in the 1952 World Championship of Drivers.
The 38th International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway on Monday, May 31, 1954. The event was part of the 1954 AAA National Championship Trail, and was also race 2 of 9 in the 1954 World Championship of Drivers.
The 39th International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway on Monday, May 30, 1955. The event was race 1 of 11 of the 1955 AAA National Championship Trail and was race 3 of 7 in the 1955 World Championship of Drivers.
The 41st International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway on Thursday, May 30, 1957. The event was part of the 1957 USAC National Championship Trail and it was the third race of the eight-race 1957 World Championship of Drivers.
The 43rd International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway on Saturday, May 30, 1959. The event was part of the 1959 USAC National Championship Trail and was also race 2 of 9 in the 1959 World Championship of Drivers.
The 1953 Formula One season was the seventh season of the FIA's Formula One racing. It consisted only of several non-championship motor races. As in 1952, all races counting towards the World Championship of Drivers, apart from the Indianapolis 500, were held for cars complying with Formula Two regulations rather than with Formula One, with the Indianapolis 500 held to AAA regulations.
The 1950 Formula One season was the fourth season of the FIA's Formula One motor racing. It featured the inaugural FIA World Championship of Drivers, as well as several non-championship races. The championship, which commenced on 13 May and ended on 3 September, consisted of six Grand Prix races, each held in Europe and open to Formula One cars, plus the Indianapolis 500, which was run to AAA National Championship regulations. Giuseppe Farina won the championship from Juan Manuel Fangio and Luigi Fagioli.
Chester Joseph Miller was an American racing driver. He was killed in a crash in the south turn of the Indianapolis Motor Speedway during practice for the 1953 Indianapolis 500. During his long Indianapolis racing career, Miller earned the nickname "Dean of the Speedway."
The 1983 CART PPG Indy Car World Series season was the 5th national championship season of American open wheel racing sanctioned by CART. The season consisted of 13 races. Al Unser was the national champion, and the rookie of the year was Teo Fabi. The 1983 Indianapolis 500 was sanctioned by USAC, but an arrangement was made such that it counted towards the CART points championship. Tom Sneva won the Indy 500, after three previous runner-up finishes.
The 1955 AAA Championship Car season consisted of 11 races, beginning in Speedway, Indiana on May 30 and concluding in Phoenix, Arizona on November 6. There was also one non-championship event in Mechanicsburg, Pennsylvania. The AAA National Champion and Indianapolis 500 winner was Bob Sweikert. Manny Ayulo was killed at Indianapolis while practicing for the 1955 Indianapolis 500, and Bill Vukovich, the two-time defending winner, was killed in the race itself. Jack McGrath, the two-time champion, was killed in the final race at Phoenix on lap 85. This was the last year of the AAA National Championship; USAC sanctioned the series starting the next year.
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 1954 AAA Championship Car season consisted of 13 races, beginning in Speedway, Indiana on May 30 and concluding in Las Vegas, Nevada on November 14. There was also one non-championship event in Mechanicsburg, Pennsylvania. The AAA National Champion was Jimmy Bryan, and the Indianapolis 500 winner was Bill Vukovich. Bob Scott was killed in the Independence Day Sweepstakes race at Darlington.
The 1953 AAA Championship Car season consisted of 12 races, beginning in Speedway, Indiana on May 30 and concluding in Phoenix, Arizona on November 11. There was also one non-championship event in Mechanicsburg, Pennsylvania. The AAA National Champion was Sam Hanks, and the Indianapolis 500 winner was Bill Vukovich. Chet Miller died while practicing for the Indianapolis 500.
The 1952 AAA Championship Car season consisted of 12 races, beginning in Speedway, Indiana on May 30 and concluding in Phoenix, Arizona on November 11. There was also one non-championship event in Mechanicsburg, Pennsylvania. The AAA National Champion was Chuck Stevenson, and the Indianapolis 500 winner was Troy Ruttman. Johnny McDowell was killed at the Milwaukee while qualifying for the Rex Mays Classic. Joe James died in the San José 100 race.
The 1951 AAA Championship Car season consisted of 15 races, beginning in Speedway, Indiana on May 30 and concluding in San Mateo, California on November 11. There was also one non-championship event in Mechanicsburg, Pennsylvania. The AAA National Champion was Tony Bettenhausen, and the Indianapolis 500 winner was Lee Wallard.
The 1950 AAA Championship Car season consisted of 13 races, beginning in Speedway, Indiana on May 30 and concluding in Darlington, South Carolina on December 10. There were also two non-championship events. The AAA National Champion was Henry Banks, and the Indianapolis 500 winner was Johnnie Parsons.
The 1946 AAA Championship Car season was the first season of American Championship car racing following World War II. After four years without automobile racing in the United States, the AAA Contest Board was initially concerned about having enough races, enough entrants, and suitable equipment, to contest season on such short notice for 1946. Even the Indianapolis 500 was in doubt, as the Indianapolis Motor Speedway had been fallen into a terrible state of neglect during the war years.
The 2020 NTT IndyCar Series was the 25th season of the IndyCar Series and the 109th official championship season of American open wheel racing. The premier event was the 2020 Indianapolis 500. Josef Newgarden entered the season as the defending National Champion. Honda entered as defending Manufacturers' Cup champion for the second consecutive season. It was the first year under Penske management after they took over in late 2019.
Johnnie Parsons 
Jim Clark 
Teo Fabi 
Roberto Guerrero 
Emerson Fittipaldi 
Arie Luyendyk 
Scott Goodyear 
Tomas Scheckter 
Scott Dixon 
Will Power 
Takuma Sato 
Marcus Ericsson 
Christian Lundgaard