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Indianapolis 500
The Indianapolis 500, formally known as the Indianapolis 500-Mile Race, and commonly shortened to Indy 500, is an annual automobile race held at the Indianapolis Motor Speedway in Speedway, Indiana, United States, an enclave suburb of Indianapolis. The event is traditionally held over Memorial Day weekend, usually the last weekend of May. It is contested as part of the IndyCar Series, the top level of American open-wheel car racing, a formula colloquially known as "Indy car racing". The track itself is nicknamed the "Brickyard", as the racing surface was first paved in brick in the fall of 1909. One yard of brick remains exposed at the start/finish line. The event, billed as The Greatest Spectacle in Racing, is considered part of the Triple Crown of Motorsport along with the 24 Hours of Le Mans and the Monaco Grand Prix, with which it has frequently shared a date.
The inaugural race was held in 1911 and was won by Ray Harroun. The event celebrated its 100th anniversary in 2011, and the 100th running was held in 2016. The event was put on hiatus twice, from 1917 to 1918 due to World War I and from 1942 to 1945 due to World War II. In two different periods, the race was part of FIA World Championships; between 1925 and 1928, the World Manufacturers' Championship and between 1950 and 1960, the World Drivers' Championship.
Álex Palou, the winner in 2025, is the reigning champion. The most successful drivers are A. J. Foyt, Al Unser Sr., Rick Mears and Hélio Castroneves, each of whom has won the race four times. The active driver with the most victories is Castroneves. Rick Mears holds the record for most career pole positions with six. The most successful car owner is Roger Penske, owner of the Indianapolis Motor Speedway and Team Penske, which has 20 total wins and 19 poles. Penske also has five wins at the Grand Prix of Indianapolis, held on the combined road course.
The event is steeped in tradition, in pre-race ceremonies, race procedure, and post-race celebrations. Among them are the 33-car starting grid lined up in rows of three, the annual singing of the chorus of "Back Home Again in Indiana", and the victory-lane bottle of milk. Qualifying requires the driver to complete four, rather than one, timed laps, and the time trials are conducted on a separate weekend. The official attendance is not disclosed by Speedway management, but the permanent seating capacity is roughly 235,000, and infield patrons raise typical race-day attendance to between 350,000 and 400,000.
The Indianapolis Motor Speedway complex was built in 1909 as a gravel-and-tar track and hosted a smattering of small events, including ones for motorcycles. The first long-distance event, in "fearful conditions", was the 100-lap Prest-O-Lite Trophy in 1909, won by Bob Burman in a Buick. The breakup of the track surface led to two fatal accidents in the first two long-distance events (a 250 mi (400 km) and 300 mi (480 km), which was shortened to 235 mi (378 km) after two severe wrecks).
The fact that these spectacles had attracted 15,000 paying customers (and crowds of up to 40,000) persuaded principal owner Carl G. Fisher to spend $155,000 on repaving the track with 3.2 million bricks; he also added a 33-inch (0.84 m) tall concrete wall around the track's circumference. During the 1910 Decoration Day weekend, the first events on the newly paved circuit drew 60,000 spectators; Ray Harroun won the 200-mile (320 km) Wheeler-Schebler Trophy in a Marmon.
The crowds grew progressively smaller for the rest of the season, however, so the track owners chose to focus on a single race, and considered a 24-hour contest, in the fashion of Le Mans, or a one-thousand-mile (1,600 km) event. They decided on 500 miles (800 km), the estimated distance a race car could run before dark descended on the track, and a spectacular purse of $25,000, equivalent to 82.93 pounds (37.62 kg) of pure gold. The combination allowed the track to rapidly acquire a privileged status for automobile races.
The first "500" was held at the Speedway in 1911 on Decoration Day, May 30, (as it was known from its inception in 1868 to 1967, when federal law made "Memorial Day" the official name), run to a 600-cubic-inch (9,800 cc) maximum engine size formula. It saw a field of 40 starters, with Harroun piloting a Marmon Model 32-based Wasp racer—outfitted with his invention, the rear-view mirror. Harroun (with relief from Cyrus Patschke) was declared the winner, although Ralph Mulford protested the official result. Eighty thousand spectators were in attendance, and an annual tradition had been established. Many considered Harroun to be a hazard during the race, as he was the only driver in the race driving without a riding mechanic, who checked the oil pressure and let the driver know when traffic was coming.
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Indianapolis 500
The Indianapolis 500, formally known as the Indianapolis 500-Mile Race, and commonly shortened to Indy 500, is an annual automobile race held at the Indianapolis Motor Speedway in Speedway, Indiana, United States, an enclave suburb of Indianapolis. The event is traditionally held over Memorial Day weekend, usually the last weekend of May. It is contested as part of the IndyCar Series, the top level of American open-wheel car racing, a formula colloquially known as "Indy car racing". The track itself is nicknamed the "Brickyard", as the racing surface was first paved in brick in the fall of 1909. One yard of brick remains exposed at the start/finish line. The event, billed as The Greatest Spectacle in Racing, is considered part of the Triple Crown of Motorsport along with the 24 Hours of Le Mans and the Monaco Grand Prix, with which it has frequently shared a date.
The inaugural race was held in 1911 and was won by Ray Harroun. The event celebrated its 100th anniversary in 2011, and the 100th running was held in 2016. The event was put on hiatus twice, from 1917 to 1918 due to World War I and from 1942 to 1945 due to World War II. In two different periods, the race was part of FIA World Championships; between 1925 and 1928, the World Manufacturers' Championship and between 1950 and 1960, the World Drivers' Championship.
Álex Palou, the winner in 2025, is the reigning champion. The most successful drivers are A. J. Foyt, Al Unser Sr., Rick Mears and Hélio Castroneves, each of whom has won the race four times. The active driver with the most victories is Castroneves. Rick Mears holds the record for most career pole positions with six. The most successful car owner is Roger Penske, owner of the Indianapolis Motor Speedway and Team Penske, which has 20 total wins and 19 poles. Penske also has five wins at the Grand Prix of Indianapolis, held on the combined road course.
The event is steeped in tradition, in pre-race ceremonies, race procedure, and post-race celebrations. Among them are the 33-car starting grid lined up in rows of three, the annual singing of the chorus of "Back Home Again in Indiana", and the victory-lane bottle of milk. Qualifying requires the driver to complete four, rather than one, timed laps, and the time trials are conducted on a separate weekend. The official attendance is not disclosed by Speedway management, but the permanent seating capacity is roughly 235,000, and infield patrons raise typical race-day attendance to between 350,000 and 400,000.
The Indianapolis Motor Speedway complex was built in 1909 as a gravel-and-tar track and hosted a smattering of small events, including ones for motorcycles. The first long-distance event, in "fearful conditions", was the 100-lap Prest-O-Lite Trophy in 1909, won by Bob Burman in a Buick. The breakup of the track surface led to two fatal accidents in the first two long-distance events (a 250 mi (400 km) and 300 mi (480 km), which was shortened to 235 mi (378 km) after two severe wrecks).
The fact that these spectacles had attracted 15,000 paying customers (and crowds of up to 40,000) persuaded principal owner Carl G. Fisher to spend $155,000 on repaving the track with 3.2 million bricks; he also added a 33-inch (0.84 m) tall concrete wall around the track's circumference. During the 1910 Decoration Day weekend, the first events on the newly paved circuit drew 60,000 spectators; Ray Harroun won the 200-mile (320 km) Wheeler-Schebler Trophy in a Marmon.
The crowds grew progressively smaller for the rest of the season, however, so the track owners chose to focus on a single race, and considered a 24-hour contest, in the fashion of Le Mans, or a one-thousand-mile (1,600 km) event. They decided on 500 miles (800 km), the estimated distance a race car could run before dark descended on the track, and a spectacular purse of $25,000, equivalent to 82.93 pounds (37.62 kg) of pure gold. The combination allowed the track to rapidly acquire a privileged status for automobile races.
The first "500" was held at the Speedway in 1911 on Decoration Day, May 30, (as it was known from its inception in 1868 to 1967, when federal law made "Memorial Day" the official name), run to a 600-cubic-inch (9,800 cc) maximum engine size formula. It saw a field of 40 starters, with Harroun piloting a Marmon Model 32-based Wasp racer—outfitted with his invention, the rear-view mirror. Harroun (with relief from Cyrus Patschke) was declared the winner, although Ralph Mulford protested the official result. Eighty thousand spectators were in attendance, and an annual tradition had been established. Many considered Harroun to be a hazard during the race, as he was the only driver in the race driving without a riding mechanic, who checked the oil pressure and let the driver know when traffic was coming.
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