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98-451: Twelve drivers qualified for the 1987 race, although only ten started the race. In the other editions, ten drivers were selected. The selection criteria were as follows: all race winners and pole position winners since the previous year's Marlboro Challenge; previous year's season champion; and defending Indianapolis 500 winner. If the field was still small, it could be filled out by top race finishers (most second places, third places, etc.) in

196-411: 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). 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

294-598: A Lola - Ford . The Offenhauser engine was also paired with a European maker, McLaren , obtaining three wins for the chassis, one with the Penske team in 1972 with driver Mark Donohue , and two for the McLaren works team in 1974 and 1976 with Johnny Rutherford . This was also the last time the Offy would win a race, its competitiveness steadily decreasing until its final appearance in 1983. American drivers continued to fill

392-406: A 125-mile Modified contest on October 9, 1983, was the last race that was run there under Vicari’s direction. The facility remained closed for three years. The facility and a large amount of property behind it was purchased by Roger Penske in 1986. Penske built a new track on the footprint of the old 1 1 ⁄ 8 mile dirt oval. At the same time, he sold the section of the property that held

490-407: A blind draw for the qualifying order. For each attempt, cars are allowed two warm-up laps. At that time, a member of the team is stationed at the north end of the main stretch. He or she must wave a green flag, signaling an attempt, or else the car will be waved off. The attempt can be waved off during any of the four laps by the team, driver, or race officials. (The series will wave off the run if it

588-415: A century, the race eschewed any sort of naming rights or title sponsor , a move, though uncommon in the modern sports world, that was well received by fans. This tradition finally ended in 2016 when a presenting sponsor, PennGrade, was added for the first time. In the 21st century, the facility has also slowly added sponsorship ads on the retaining walls and infield grass. The ESPN-produced ABC telecast of

686-425: A drop of approximately 30 feet. The remainder of the track trekked mostly uphill. It was the first racing oval to feature a warm-up lane to enter and exit the pits, designed in part by driver Rick Mears . In 1993, the track was renamed Nazareth Speedway. In 1997, the facility underwent improvements, including a new retaining wall, catch fence , and new grandstands. The paved track opened in 1987 and closely resembled

784-415: A given car number—the "primary" car and a "backup" car. The backup car is identified by the letter "T". For example, the two cars for the #2 team would be numbered #2 and #2T. Both cars may be practiced during the month, but due to engine lease rules, they must share the same engine. It is not uncommon for teams to prefer their backup car, if it is deemed faster, or for other strategic reasons. Additionally, as

882-470: A length of exactly 1 mile till closing in 2004. Although the Nazareth Speedway hosted rather successful Busch Series and CART events, new owner ISC closed the facility in late 2004. The races were replaced with events at Watkins Glen , another ISC-owned track. Access to the speedway was severely limited, and reopening as a professional motorsports facility was highly unlikely. As of May 2007,

980-399: A part-time team altogether that does not enter any of the other races, or enters only a few selected races. The "Indy-only" drivers may come from a wide range of pedigrees but are usually experienced Indy car competitors who either lack a full-time ride, are former full-time drivers who have elected to drop down to part-time status, or occasional one-off drivers from other racing disciplines. It

1078-481: 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,

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1176-536: A second black flag penalty for an alleged fuel leak, which dropped him to 6th. The competition went from a three-car battle to just Fittipaldi, who cruised unchallenged the remainder of the race to victory. During its tenure, from 1988–1991, the race was part of the Marlboro Million bonus program, which was similar to NASCAR's Winston Million . Any driver who won the Marlboro Grand Prix at

1274-530: A shorter distance than officially advertised. In 1997, for fairness and accuracy, the track was remeasured by the CART sanctioning body, and was advertised as 0.946 miles (1.52 km) in length. The race, which had been 200 laps, was increased to 225 laps for time value purposes. This length was used between 1997 and the last CART race in 2001. The IRL used in 2002, 2003 and 2004 a length of 0.935 miles (1.504 km) for timing and scoring. However, NASCAR stayed to

1372-399: 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

1470-405: Is a rounded rectangle, with four distinct turns of identical dimensions, connected by four straightaways (two long straightaways and two "short chutes"). Traditionally , the field consists of 33 starters, aligned in a starting grid of eleven rows of three cars apiece. Drivers race 200 laps, counter-clockwise around the circuit, for a distance of 500 miles (800 km). Since its inception in 1911 ,

1568-598: 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 typically shares 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,

1666-415: Is contested by "Indy cars" , a formula of professional -level, single-seat, open cockpit , open-wheel , purpose-built race cars. As of 2020 , all entrants utilize 2.2 L V6 , twin- turbocharged engines, tuned to produce a range of 550–750 horsepower (410–560 kW). Chevrolet and Honda are the current engine manufacturers involved in the sport. Dallara is at present the sole chassis supplier to

1764-431: Is focused on safety aspects and is done on the pit lane qualifying queue. It is relatively brief, due to the time constraints of the qualifying procedure. The post-qualifying inspection is much more stringent and lengthy, taking place in the garage area. It is to detect deviations from the performance guidelines set forth by the league, and cars can and have been fined or outright disqualified if they fail inspection. During

1862-531: Is in disrepair. Nazareth Speedway started as a horse racing track farther up in the center of the town in the 1850s known as the Northampton County Agricultural Fairgrounds. As the crowds grew, the location grew too crowded to remain in the center of the town. Around 1900, a new 1 ⁄ 2 mile dirt track was constructed at the current location between Route 191 and 248. The site began hosting motor racing events in

1960-475: Is not uncommon for some drivers (particularly former Indy 500 winners) to quit full-time driving during the season, but race solely at Indy for numerous years afterward before entering full retirement. Technical specifications for the Indianapolis 500 are currently written by IndyCar . Rules are generally the same as every other IndyCar race. In the past, particularly during the era in which USAC sanctioned

2058-403: Is obvious the run will not be fast enough to qualify and it is getting late in the day.) If an attempt is waved off after the run starts, the attempt counts and the previous time is still forfeited unless race officials waved off the attempt because of weather. Weather can and often does affect qualifying and can result in last-minute format changes. From 1911 to 1955, the race was organized under

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2156-586: 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 ,

2254-414: Is upwards of 250,000, and infield patrons raise the total race-day attendance to a range of approximately 300,000–350,000. 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

2352-467: 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. The facility is often linked to local drivers Mario and Michael Andretti 's early racing careers. It

2450-587: The Meadowlands , the Marlboro 500 at Michigan , and Marlboro Challenge in the same season, would win a $ 1,000,000 bonus. The first driver to win two of the three races was eligible for a $ 150,000 bonus. The award was never achieved, and no driver won two of the three races in the set in a year. In 1991, Rick Mears was leading the Marlboro Challenge on the final lap when his car sputtered in

2548-618: The NASCAR weekend permanently in 2021 ), and the support races on the road course moved to its own September weekend. As races were cancelled because of local restrictions, the Speedway added two more road course races in October as part of the Intercontinental GT Challenge meeting, where attendance was capped to 10,000 per event. In 2024, the race was delayed for over four hours due to heavy rain and thunderstorms in

2646-558: The Peugeot Grand Prix engine which had been serviced in his shop by Fred Offenhauser in 1914, installing it in Jimmy Murphy 's Duesenberg and allowing him to win the 1922 edition of the race. Miller then created his own automobiles, which shared the 'Miller' designation, which, in turn, were powered by supercharged versions of his 2.0- and 1.5-liter (122 and 91 in ) engine single-seaters, winning four more races for

2744-428: The green–white–checker finish in case of a late-race yellow. The race can be (and has at times) finished under caution. However, officials may call for a late-race red flag (in lieu of a lengthy yellow) to provide an opportunity for a green-flag finish, an option that was used in 2014 , 2019 , 2022 , and 2023 . The circuit lacks lights, therefore lateness can become a factor in the cases of lengthy delays. The event

2842-411: 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

2940-416: The "International Sweepstakes" dropped. Since 1981, the race has been formally advertised in this fashion, complete with a unique annual logo with the ordinal almost always included. Around that same time, in the wake of the 1979 entry controversy, and the formation of CART , the race changed to an invitational event, rather than an Open , rendering the " sweepstakes " description inappropriate. For nearly

3038-429: The 1.125-mile dirt track layout. However, the length was shortened, and the turns were reconfigured to widen the radii. Though advertised as a 1-mile tri-oval, it actually measured less than one mile in length. The banking varied between 2.7° and 6.0°. The back straight was 1200 feet and main straight was 800 feet. Participants were known to exploit the inaccurate measurement for fuel strategy, knowing that they were running

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3136-592: The 100th race. Harold Hefner (Allison), Tom Harrison (Fisher), Jeff Angel (Wheeler), and Matthew Allen (Newby). In 2020, the race was delayed for the first time from its usual Memorial Day running to August due to the COVID-19 pandemic . There was no audience in attendance, so as to comply with pandemic guidelines. The road course race was moved to the NASCAR weekend in July (which led to an IndyCar road course race added to

3234-489: The 1910s. In 1966, an additional 1 1 ⁄ 8 mile dirt track was added. In 1987, the Penske-owned paved speedway replaced the big track and the small track was demolished and the site was replaced by the expanding of a nearby grocery store in 1988. The 1 ⁄ 2 mile dirt track was constructed in the 1900s as a horse racing track. The first automotive events held at the location were not racing, instead it

3332-523: The 1970s. Soon after the death of Tony Hulman in 1977, and the loss of several key USAC officials in a 1978 plane crash, several key team owners banded together and formed CART in late 1978 to sanction the sport of Indy car racing . The Indianapolis 500 itself, however, remained under the sanctioning control of USAC. It became the lone top-level race the body still sanctioned, as it ultimately dropped all other Indy car races (as well as their stock car division ) to concentrate on sprints and midgets . For

3430-407: The 1980s, as was Dutchman Arie Luyendyk . In 1993, reigning Formula One World Champion Nigel Mansell shocked the racing world by leaving Formula One for CART . While he came in only third in the 500 , he won the 1993 CART championship . Foreign-born drivers became a regular fixture of Indianapolis in the years to follow. Despite the increase in foreign drivers commonly being associated with

3528-462: The 2004, 2005, 2006, 2007, and 2008 NASCAR seasons, respectively. For the 2006-2009 games, the track was considered a fantasy track. In November 2015, Raceway Properties LLC purchased the property. As part of the offer, there is a clause that states that racing remains banned from returning to the property. The property is currently zoned as general commercial property, with the most recent plans being to convert sections to residential zoning and build

3626-468: The 33-car field lining up three-wide for the start, the annual singing of the chorus of " Back Home Again in Indiana ", and the victory lane bottle of milk. Also unique is that 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

3724-492: The CART era, three of the first six Indianapolis 500 winners were non-American drivers. In 2009, the Indianapolis Motor Speedway began a three-year-long "Centennial Era" to celebrate the 100th anniversary of the opening of the track (1909), and the 100th anniversary of the first Indy 500 (1911). As a gesture to the nostalgic Centennial Era celebration (2009–2011), tickets for the 2009 race donned

3822-598: The Formula One drivers who did drive at the speedway was five-time world champion Argentinian Juan Manuel Fangio , though he failed to qualify for the 1958 race. It was not until the Indianapolis 500 was removed from the World Championship calendar that European entries made their return. In 1963, technical innovator Colin Chapman brought his Team Lotus to Indianapolis for the first time, attracted by

3920-543: The Indianapolis 500 for nearly two decades, made a brief return just before World War II , with the competitive Maserati 8CTF allowing Wilbur Shaw to become the first driver to win consecutively at Indianapolis, in 1939 and 1940. With the 500 having been a part of the World Drivers' Championship between 1950 and 1960, Ferrari made a discreet appearance at the 1952 event with Alberto Ascari , but European entries were few and far between during those days. Among

4018-609: The Indy 500 (but CART sanctioned the other Indy car races), rules at Indy slightly differed at times. The result, for example, would be a particular chassis or engine configuration being legal at Indy, but not so at the CART-sanctioned events. This was rather commonplace in the 1980s and early 1990s, when "stock-block" engines (namely the V-6 Buick) were allotted an increased level of turbocharger boost by USAC at Indy, compared to

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4116-476: The USAC dirt champ car race in 1969. In addition, Rags Carter won four consecutive events. Buzzie Reutimann won a 150 lap race in 1971. Frankie Schneider won eleven races total at the track, the most of any driver. In 1971, the large track was closed, and would remain closed until facility was purchased by Lindy Vicari in 1982. Vicari cleared eleven years of plant growth, refurbished the facilities, and shortened

4214-528: The United States' participation in the two World Wars (1917–1918, 1942–1945), the advertised Centennial Era occurred during the 93rd to 95th runnings. To avoid confusion between the 100th anniversary, and the actual number of times the race has been run, references to the ordinal during the Centennial Era were curtailed. In the 2014 meeting, the road course became part of the race meeting for

4312-401: The area. The race was originally advertised as the "International 500-Mile Sweepstakes Race" from 1911 to 1916. However, from its inception, the race has been widely known as the Indianapolis 500 or, more simply "the 500", as for many years, it was the only noteworthy auto race of such distance. In 1919, the race was referred to as the "Liberty Sweepstakes" following WWI . From 1920 to 1980,

4410-684: The auspices of the AAA Contest Board . Following the 1955 Le Mans disaster , AAA dissolved the Contest Board to concentrate on its membership program aimed at the general motoring public. Speedway owner Tony Hulman founded USAC in 1956, which took over sanctioning of the race and the sport of Championship racing . From 1950 to 1960, the Indianapolis 500 also counted toward the FIA 's World Championship of Drivers (now synonymous with Formula One ), although few drivers participated in

4508-409: The bigger track to a one-mile (1.6 km) dirt oval. His idea was to host a series of high-paying special events for USAC’s Championship Dirt Cars and Modifieds. The races that he staged there drew big crowds, large competition, and much acclaim. Maintaining the two dirt tracks turned out to be a larger financial burden than expected, and Vicari closed the two tracks. Brightbill’s $ 50,000 victory in

4606-491: The crews. More lengthy repairs are allowed, and since 1998 teams are permitted to return to the garage area to make repairs. However, there are limitations to the extent of repair work allowed and the practicality of such work. Teams are not allowed to change engines, and since 1933 a rule has been in place where teams are not allowed to add oil . In addition, the officials designate a certain lap after which off-track cars being serviced/repaired are no longer permitted to return to

4704-472: The current season's standings. In most years the event was held in conjunction with the final race weekend of the season, but in some years it was at the second-to-last race. The race distance each year was approximately 100 miles, which normally required one pit stop for fuel. The distance was typically one half the accompanying points-paying race distance (≈200 miles). It was held at three different locations during its history: The inaugural Marlboro Challenge

4802-409: The distance has been completed, the race must be resumed and achieve at least the 101-lap distance in order to be official. A primary limiting factor is available daylight, as the track does not have lighting. If the race is halted and cannot be resumed before sunset, the resumption will be scheduled for the next possible day. The Indianapolis 500, as well as other IndyCar Series races, does not utilize

4900-548: The driver know when traffic was coming. In 1912, the purse was raised to $ 50,000, the field was limited to 33 (where it remains), and a riding mechanic was made mandatory. This second event was won by Joe Dawson in a National , after Ralph DePalma 's Mercedes broke. Although the first race was won by an American driver at the wheel of an American car, European makers such as the Italian Fiat or French Peugeot companies soon developed their vehicles to try to win

4998-525: The engine up to 1929 (two of them, 1926 and 1928, in Miller chassis). The engines powered another seven winners until 1938 (two of them, 1930 and 1932, in Miller chassis), then ran at first with stock-type motors before later being adjusted to the international 3.0-liter formula. After purchasing the Speedway in 1927, Eddie Rickenbacker prohibited supercharging and increased the displacement limit to 366 cu in (6,000 cc), while also re-introducing

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5096-489: The event did not recognize this sponsorship and instead had Firestone Tires as its presenting sponsorship. The Borg-Warner Trophy , introduced in 1936, proclaims the event as the "Indianapolis 500-Mile Race", with no reference at all to the name "International Sweepstakes". The Indianapolis 500 is held annually at the Indianapolis Motor Speedway , a 2.5-mile (4 km) oval circuit . The track

5194-433: The event, which they did from 1912 to 1919. The 1913 event saw a change to a 450-cubic-inch (7,400 cc) maximum engine size. After World War I , the native drivers and manufacturers regained their dominance of the race, and engineer Harry Miller set himself up as the most competitive of the post-war builders. His technical developments allowed him to be indirectly connected to a history of success that would last into

5292-655: The final turn due to low fuel pressure. He had won the Marlboro 500 earlier that year, and would have won the $ 150,000 bonus had he held on over the final few seconds to win. 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

5390-428: The finish, and captured the Marlboro Challenge in its first running at Laguna Seca . Unser ran out of fuel pulling into victory lane, after holding off second place Danny Sullivan by 4 seconds at the finish line. Sullivan grabbed second when Emerson Fittipaldi ran out of fuel on the final lap. Bobby Rahal came home third, throwing an aggressive block on Teo Fabi down the homestretch. The race moved to Nazareth ,

5488-442: The first time being held on an oval. Rick Mears started 3rd, but slipped to 4th position after the start. He worked his way to the front of the field by lap 66 (of 100). After a pit stop on lap 72, Mears made the handling adjustments he needed to pull out to a 9-second lead. However, over the final handful of laps, Mears was stuck behind the lapped car of Mario Andretti , which slowed his pace. Second place Emerson Fittipaldi closed

5586-519: The first time. The GMR Grand Prix road course event, and the three upper tiers of Road to Indy , participated in road course events at the Speedway during the first week of activities. Six years later, in 2016 , the race celebrated its 100th running with about 350,000 in attendance. Four local actors were hired to portray the Founding Four of James Allison, Carl Fisher, Frank Wheeler, and Arthur Newby during multiple Centennial Era events and

5684-409: The gap; but Fittipaldi had trouble himself getting around Arie Luyendyk . Mears finally cleared the traffic, and held on for a 4.2 second victory over Fittipaldi. The event was back at Laguna Seca for 1991. Rick Mears led 42 of the 45 laps, and was leading second place Michael Andretti on the final lap. Mears was poised to win a total of $ 425,000 which included a $ 125,000 bonus for winning two of

5782-418: The grandstands, signage and all visible structures at the racetrack have been removed. The disassembled grandstands were transported and erected at Watkins Glen and Michigan International Speedway. The track remains fenced off and access to any part of the track or land surrounding it is restricted. Historical Google Earth imagery shows that by May 2008, large piles of earth were erected at various points around

5880-474: The large monetary prizes, far bigger than the usual at a European event. Racing a mid-engined car, Scotsman Jim Clark was second in his first attempt in 1963, dominated in 1964 until suffering suspension failure on lap 47, and completely dominated the race in 1965, a victory which also interrupted the success of the Offy, and giving the 4.2-liter Ford V8 its first success at the race. The following year, 1966, saw another British win, this time Graham Hill in

5978-401: The lead to Emerson Fittipaldi . Fittipaldi pulled out to a 20-second lead, but he had to make his pit stop on lap 32. Meanwhile, after pitting early, Rahal was charging through the field and re-assumed the lead during Fittipaldi's stop. Fittipaldi charged to catch Rahal, but ran out of fuel on the final lap as Rahal drove to victory. Heavy rain delayed the start of the race by over an hour, and

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6076-437: The leader, but the two cars were nose-to-tail. With two laps to go, the leaders were dicing through traffic, and Unser attempted to pass for the lead going into turn 9. Unser hit a deep puddle of standing water which caused the car to bobble, spin, and crash into the outside wall. Michael Andretti avoided contact, and drove to victory. The race turned into a battle of fuel mileage calculations. Al Unser Jr. stretched his fuel to

6174-663: The majority of entries at the Brickyard in the following years, but European technology had taken over. Starting in 1978, most chassis and engines were European, with the only American-based chassis to win during the CART era being the Wildcat and Galmer (which was technically built in Bicester , England) in 1982 and 1992, respectively. Ford and Chevrolet engines were built in the UK by Cosworth and Ilmor , respectively. As of 2023,

6272-599: The mid-1970s. For musical entertainment before the start of the race, the Purdue All-American Marching Band has been the host band of the race since 1919. In 1946, American operatic tenor and car enthusiast James Melton started the tradition of singing " Back Home Again in Indiana " with the Purdue Band before the race when asked to do so on the spur of the moment by Speedway president Tony Hulman . This tradition has continued through

6370-414: The moniker "93rd 500 Mile International Sweepstakes". It is the first time since 1980 that the "Sweepstakes" title has been used. In May 2009, the ordinal (93rd) was used very sparingly, and for the first time since 1981, was not identified on the annual logo. Instead, in most instances in print, television, and radio, the race was referred to as the "2009 Indianapolis 500". Since the race was not held during

6468-465: The month wears on, a "T car" may be split off into a separate entry, and reassigned a new number, or be sold to another team. All cars must pass a rigorous technical inspection before receiving a sticker signifying that the car is eligible to practice. Various criteria include minimum weight, dimensions, and approved parts, particularly safety equipment. Before and after qualification attempts, cars must pass another inspection. The pre-qualifying inspection

6566-518: The most recent active Formula One driver to have entered the 500 is Fernando Alonso , who drove in the 2017 race. Alonso was the first Formula One driver to enter the 500 since Teo Fabi in 1984 . After foreign cars became the norm, foreign drivers began competing in the Indianapolis 500 regularly, choosing the United States as their primary base for their motor racing activities. Brazilian Emerson Fittipaldi , Italian Teo Fabi , and Colombian Roberto Guerrero were able to obtain good outings in

6664-572: 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 18 poles. Penske also has five wins at the IndyCar Grand Prix , held on the combined road course . The event is steeped in tradition , in pre-race ceremonies, post-race celebrations, and race procedure. The most noteworthy and most popular traditions are

6762-611: The next three years, the race was not officially recognized on the CART calendar, but the CART teams and drivers comprised the field. By 1983, an agreement was made for the USAC-sanctioned Indy 500 to be recognized on the CART calendar and the race awarded points towards the CART championship. Nazareth Speedway Nazareth Speedway is a defunct auto racing facility in Lower Nazareth Township in

6860-434: The old 1 ⁄ 2 mile track to the owners of Laneco, a former grocery store chain. Laneco built a new store on the site of the original track, which is now home to a Giant grocery store. Penske's new track opened as Pennsylvania International Raceway in the fall of 1987. It was paved in asphalt, and had very modest banking. The elevation change during the lap was significant, as the backstretch ran steeply downhill for

6958-439: The other races of that series. Italian driver Alberto Ascari was the only European-based driver to race in the 500 during its World Championship years. His appearance in 1952 in a Ferrari was also the only time a Ferrari has ever appeared in the race. Juan Manuel Fangio practiced at the track in 1958 but declined an offer to race. Control issues of monetary prizes and squabbles over technical regulations caused conflict in

7056-487: The purpose-built V-8 quad-cam engines. While the "stock block" engines were technically legal in CART competition, they were not given the increased boost advantage, which effectively rendered them uncompetitive, and precluded their use by teams. The most famous manifestation of the USAC rules disparity was the Ilmor -built Mercedes-Benz 500I engine fielded by Roger Penske in 1994 . Teams may enter up to two machines under

7154-522: The race has always been scheduled on or around Memorial Day . Since 1974 , the race has been specifically scheduled for the Sunday of Memorial Day weekend. The Sunday of Memorial Day weekend is widely considered one of the most important days on the motorsports calendar, as it is the day of the Indianapolis 500, the Coca-Cola 600 , and (usually) the Monaco Grand Prix . Practice and time trials are held in

7252-429: The race is not held in wet conditions. In the event of a rain delay , the race will be postponed until rain showers cease, and the track is sufficiently dried. If rain falls during the race itself, officials will halt the race (red flag) and await safe conditions. The officials can end the race and declare the results official if more than half of the scheduled distance (i.e., 101 laps) has been completed. If less than half

7350-418: The race officially reverted to the "International Sweepstakes" moniker, as printed on the tickets and other paraphernalia, with slight variations over the years. Following WWII , the race was commonly recognized as "The 500", "The 500-Mile Race", "Indianapolis 500-Mile Race", "Indianapolis 500", or the simple form "Indy 500". Usually the ordinal (e.g. "50th") preceded it. Often the race was also advertised on

7448-403: The race started with a damp track at Tamiami Park . Al Unser Jr. took the early lead, but Michael Andretti who started sixth charged through the field in the early going. On lap 20, Unser and Andretti became locked in a fierce battle all the way to the finish. With the track beginning to dry, Andretti switched to slicks during his pit stop on lap 30, as did Unser. On lap 33. Andretti emerged as

7546-493: 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 . Josef Newgarden , the winner in 2023 – 2024 , 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

7644-413: The race, leading the first 62 laps between themselves, but controversy erupted after a caution came out on lap 54. On lap 56, Rahal, Andretti, and Emerson Fittipaldi all ducked into the pits for their mandatory pit stop. Exiting the pits, CART officials ruled that both Rahal and Andretti passed the pace car before crossing the blend line, and issued both drivers a stop-and-go penalty. Rahal was later issued

7742-425: The race, work on the car is permitted, but it is usually limited to routine pit stop work (changing tires and refueling) and minor adjustments (wing angles, etc.) Pit stop activity is rigorously rehearsed by the crews and in modern times, routine pits stops are regularly completed in under ten seconds. Other more involved work, such as replacing damaged bodywork (wings, nose cones, etc.), can also be completed quickly by

7840-451: The race. Throughout the years, the race has used several different qualifying procedures. The current four-lap (ten-mile) qualifying distance was first introduced in 1920 and has been used every year since 1939. Presently, qualifying occurs on over two days. On Day 1, positions 13–30 (or 13–33 if there are only 33 entries) have their position set with all other positions set on Day 2. Following Fast Friday practice, all cars are entered into

7938-399: The radio as the "Annual Memorial Day race", or similar variations. By the late 20th century, the term "Indy 500" had slowly emerged as the most common and most popularly used moniker. As such, since 2016, the official race logo has used the contemporary and colloquial term "Indy 500". For the 1981 race , the name "65th Indianapolis 500-Mile Race" was officially adopted, with all references as

8036-489: The riding mechanic. In 1935, Miller's former employees, Fred Offenhauser and Leo Goossen , had already achieved their first win with the soon-to-become famous 4-cylinder Offenhauser or "Offy" engine. This motor was forever connected with the Brickyard's history with a to-date record total of 27 wins, in both naturally aspirated and supercharged form, and winning a likewise record-holding 18 consecutive years between 1947 and 1964. Meanwhile, European manufacturers, gone from

8134-522: The series. Firestone , which has a deep history in the sport, dating back to the first 500, is currently the exclusive tire provider. The traditional 33-car starting field at Indianapolis is larger than the fields at the other IndyCar races. The field at Indy typically consists of all of the full-time IndyCar Series entries (roughly 20–22 cars), along with roughly 10–15 part-time or "Indy-only" entries. The "Indy-only" entries, also known as "One-offs", may be an extra car added to an existing full-time team, or

8232-541: The three legs of the Marlboro Million. On the final corner of the final lap, Mears suddenly slowed. A fuel pickup problem caused the car to sputter, and Michael Andretti pounced, darting by and taking the lead in the final few hundred yards. Andretti won, becoming the first two-time winner of the Marlboro Challenge. The final edition of the Marlboro Challenge was held at Nazareth , the second time at that track. Bobby Rahal and Michael Andretti dominated much of

8330-510: The track to prevent use of the racing surface. Images as of September 2020 show those piles remain in place, though show signs of weathering. Although the track closed in 2004, it is still featured in the EA Sports video games NASCAR SimRacing , NASCAR 2005: Chase for the Cup , NASCAR 06: Total Team Control , NASCAR 07 , NASCAR 08 (PS2) , and NASCAR 09 (PS2) , which are based on

8428-432: The track with 3.2 million bricks; he also added a 33-inch (0.84 m) 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

8526-579: The two weeks leading up to the race, while miscellaneous preliminary testing is held as early as April. The race is the most prestigious event of the IndyCar calendar, and one of the oldest and most important automobile races. It has been reported to be the largest single-day sporting event in the world. Likewise, the Indianapolis Motor Speedway itself is regarded as the world's largest sporting facility in terms of capacity. The total purse exceeded $ 13 million in 2011 , with over $ 2.5 million awarded to

8624-400: The winner, making it one of the richest cash prize funds in sports. Similar to NASCAR 's Daytona 500 , the Indianapolis 500 is typically held early in the IndyCar Series season. That is unique to most sports where major events are usually at the end of the respective season. Currently, the Indy 500 is the sixth event of the 17-race IndyCar schedule. From the 1970s to the 1990s, Indianapolis

8722-407: The years, notably by actor and singer Jim Nabors from 1972 until 2014. Nabors announced in 2014, citing health-related reasons, that the 2014 Indy 500 would be the last at which he would sing the song. In 2015, the a cappella group Straight No Chaser sang the song before the race, and in the two races held after Nabors' retirement (and before he became the regular singer), the singing of the song

8820-552: Was a sport called auto polo . Following the Great Depression the first large race that happened at the small track would be held in 1947 by the American Automobile Association . The race included 35 cars, and attracted a crowd of 11,000 spectators. In 1952, Jerry Fried purchased the fairgrounds. He continued the racing, and added in additional events, such as demolition derbies . The track

8918-449: Was also associated with Frankie Schneider due to his large number of wins on the two dirt tracks. As of November 2015, the site was purchased by Raceway Properties LLC under David Jaindl. There are no current plans to return racing to the facility. As of 2024 the track is abandoned and in a state of disrepair with much of the track's infrastructure (such as grandstands) having been removed. The track's racing surface still exists though it

9016-444: Was also the location of one of the first enduro races on the east coast. The 1 ⁄ 2 mile track continued to operate weekly during the closing of the large track from 1971 to 1982. In the time period the short track was open, Buzzie Reutimann won 33 races, leading to the 1972 and 1973 track titles. During Roger Penske's ownership in 1988, the track was sold to nearby Laneco supermarket and demolished. The big track

9114-554: Was done on a rotating basis, with the Spring 2014 winner of The Voice Josh Kaufman performing in 2016. However, the Speedway has returned to a standard singer with Jim Cornelison doing it since 2017. Following the European trends, engine sizes were limited to 183 cu in (3,000 cc) during 1920–1922, 122 cu in (2,000 cc) for 1923–1925, and 91 cu in (1,490 cc) in 1926–1929. The 1920 race

9212-441: Was held at Tamiami Park , and featured a field of race winners, pole position winners, and top drivers in the points standings from the 1987 season. Drivers were required to make at least one pit stop (changing at least two tires and adding at least 5 gallons of fuel) during the 42-lap race. Raul Boesel started from the pole, but Bobby Rahal jumped into the lead at the start. Rahal gave up the lead when he pitted on lap 18, handing

9310-473: Was often the second or third race of the season, and as late as the 1950s, it was sometimes the first championship event of the year. Due to the high prestige of the Indianapolis 500—rivaling or even surpassing the season championship—it is not uncommon for some teams and drivers to focus heavily on preparing for that race during the early part of the season, and not focus fully on the championship battle until after Indy. Due to safety issues such as aquaplaning ,

9408-453: Was opened in April 1966, as a five-turn 1.125 mi (1.811 km) dirt track named Nazareth National Speedway. The track featured modified races. Frankie Schneider had a clean sweep at the event - he had the fastest qualifying time, won his heat race, and won the feature event. The event turned out to be the only event at the track in the season. The track held nine events in 1967, which

9506-497: Was the most events the track hosted in one season. Schneider won five of the races. In 1968, the track hosted five modified events. Schneider won three of them. Al Tasnady started near last in the August 24, 1968 modified event, and won the race by lapping all drivers except Schneider. USAC Dirt Champ cars raced at the track on July 13, 1968. The race was won by Al Unser , who beat local driver Mario Andretti . Mario Andretti won

9604-467: Was won by Gaston Chevrolet in a Frontenac , prepared by his brothers, powered by the first eight-cylinder engine to win the 500. For 1923, riding mechanics were no longer required. A supercharged car, ID, first won the race in 1924. In 1925, Pete DePaolo was the first to win at an average over 100 mph (160 km/h), with a speed of 101.13 mph (162.75 km/h). In the early 1920s, Miller built his 3.0-liter (183 in ) engine, inspired by

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