The Indianapolis Motor Speedway is a motor racing circuit located in Speedway, Indiana, an enclave suburb of Indianapolis, Indiana. It is the home of the Indianapolis 500 and the Verizon 200 and formerly the home of the United States Grand Prix and Indianapolis motorcycle Grand Prix. It is located six miles (9.7 km) west of Downtown Indianapolis.
The United States Grand Prix is a motor racing event that has been held on and off since 1908, when it was known as the American Grand Prize. The Grand Prix later became part of the Formula One World Championship. As of 2023, the Grand Prix has been held 52 times at ten different locations. Since 2012, it has been held every year at the Circuit of the Americas in Austin, Texas, except in 2020 when it was cancelled due to the COVID-19 pandemic.
Raffaele "Ralph" DePalma, also spelt De Palma, was an American racing driver who won the 1915 Indianapolis 500. His entry at the International Motorsports Hall of Fame estimates that he won about 2,000 races. DePalma won the 1908, 1909, 1910, and 1911 American AAA national dirt track championships and is credited with winning 25 American Championship car races. He won the Canadian national championship in 1929. DePalma estimated that he had earned $1.5 million by 1934 after racing for 27 years. He is inducted in numerous halls of fame. He competed on boards and dirt road courses and ovals.
The 1912 Indianapolis 500-Mile Race, or International 500-Mile Sweepstakes Race, the second such race in history, was held at the Indianapolis Motor Speedway on Thursday, May 30, 1912. Indiana-born driver Joe Dawson won the race, leading only the final two laps. Ralph DePalma dominated the race, leading 196 of the 200 laps, and pulling out to an over 5-lap lead. But with just over two laps to go, his car failed with a broken connecting rod.
The 4th International 500-Mile Sweepstakes Race was held at the Indianapolis Motor Speedway on Saturday, May 30, 1914.
The Third International 500-Mile Sweepstakes Race was held at the Indianapolis Motor Speedway on Friday, May 30, 1913. Frenchman Jules Goux became the first foreign-born, and first European winner of the Indianapolis 500. His margin of victory of 13 minutes, 8 seconds over second place Spencer Wishart still stands, as of 2023, as the largest margin of victory in Indianapolis 500 history.
Caleb Smith Bragg was an American racing driver, speedboat racer, aviation pioneer, and automotive inventor. He participated in the 1911, 1913 and 1914 Indianapolis 500. In speedboat racing, Caleb won three consecutive APBA Challenge Cup races in Detroit from 1923 to 1925. He was a co-inventor of the Bragg-Kliesrath brake.
Robert R. Burman was an American racing driver. He was an open-wheel pioneer, setting numerous speed records in the early 1900s. He participated in many historic races and was one of the drivers to compete in the first edition of the Indianapolis 500 in 1911.
David Loney Bruce-Brown was an American racing driver.
The 1910 Grand Prix season was the fifth Grand Prix racing season. Because of the ongoing international economic recession, there were no Grandes Épreuves held. The American Grand Prize was held in Savannah.
The 1911 Grand Prix season consisted of Grand Prix races in the United States and Europe. It was a significant year as European racing gradually came out of the doldrums. A Grand Prix was held in France again. The first Indianapolis 500 was held at Indianapolis Motor Speedway, joining the American Grand Prize as a leading race.
The 1912 Grand Prix season saw Grand Prix motor racing in Europe and the United States. The growing economic confidence and interest from car manufacturers saw bigger fields and more races in the season. The French Grand Prix was held for the first time since 1908 and staged at Dieppe. The American Grand Prize was held in Milwaukee, moving from its previous home in Savannah.
The 1913 Grand Prix season consisted of Grand Prix races in Europe and the United States. Once again, the Peugeot works cars were the team to beat, continuing their success. This year the French Grand Prix was held in Amiens. The ACF introduced a fuel-economy formula for the race to discourage bigger-engined cars. Peugeot drivers Georges Boillot and Jules Goux claimed a 1-2 victory for the company after Zuccarelli had been killed in practice.
The 1914 Grand Prix season consisted of Grand Prix races across Europe and the United States until abbreviated by the outbreak of World War I.
The 1915 Grand Prix season saw Grand Prix motor racing continue in the United States. Racing was suspended in Europe due to the outbreak of World War I. The American Grand Prize was held in San Francisco for the first time, in conjunction with the Panama–Pacific International Exposition. Several of the latest European cars had been imported to the USA before the war started. Briton Dario Resta had a Peugeot and Ralph DePalma raced one of the Mercedes GPs. While Resta won both races at San Francisco and DePalma won the Indianapolis 500, just ahead of Resta it was Earl Cooper, running a Stutz, whose consistency gave him the unofficial AAA national championship.
The 1910 American Grand Prize was a Grand Prix auto race held on closed public roads outside Savannah, Georgia on November 12, 1910. It was the second edition of the Automobile Club of America's American Grand Prize. The race was won by American David Bruce-Brown in a Benz.
The 1912 AAA Championship Car season consisted of 18 races, beginning in Santa Monica, California on May 4 and concluding in Brooklyn, New York on November 5. There was also one non-championship event at Milwaukee, Wisconsin. AAA did not award points towards a National Championship during the 1912 season, and did not declare a National Champion. Joe Dawson was the winner of the Indianapolis 500.
The 1915 AAA Championship Car season consisted of 27 races, beginning in San Diego, California on January 9 and concluding in San Francisco, California on November 25. AAA did not award points towards a National Championship during the 1915 season, and did not declare a National Champion. Ralph DePalma was the winner of the Indianapolis 500.
The Santa Monica road race course was an American race track consisting of public roads. Established by a consortium of Southern California auto dealers who sought to promote cars, buying them as well as racing them, at a time when they were rather rare in Los Angeles, the Santa Monica road races lasted for ten years.
Omaha Speedway was a wooden board track in Carter Lake, Iowa, which was part of Council Bluffs, Iowa at the time, near East Omaha, Nebraska. It hosted AAA Champ Car races from 1915 to 1917.
