Arie Luijendijk, nicknamed "The Flying Dutchman," is a Dutch former auto racing driver, and winner of the 1990 and 1997 Indianapolis 500 races. He was inducted into the Indianapolis Motor Speedway Hall of Fame in 2009, and the Motorsports Hall of Fame of America in 2014.
Alfred Unser was an American automobile racing driver, the younger brother of fellow racing drivers Jerry and Bobby Unser, and father of Al Unser Jr. He was the second of four men to have won the Indianapolis 500 four times, the fourth of six to have won the race in consecutive years, and the winner of the National Championship in 1970, 1983, and 1985. The Unser family has won the Indy 500 a record nine times. He was the only person to have both a sibling (Bobby) and child as fellow Indy 500 winners. Al's nephews Johnny and Robby Unser have also competed in that race. In 1971, he became the only driver to date to win the race on his birthday.
Alfred Unser Jr. – nicknamed "Little Al" to distinguish him from his father, Al Unser – is an American retired racing driver. Known primarily for his Championship car career, Unser won two CART championships, and is a two-time winner of the Indianapolis 500.
Sébastien Olivier Bourdais is a French professional racing driver who currently races in the IMSA WeatherTech SportsCar Championship for Cadillac Chip Ganassi Racing in the GTP category. He is one of the most successful drivers in the history of American open-wheel car racing, having won 37 races. He won four successive championships under Champ Car World Series sanction from 2004 to 2007. Later he competed at the IndyCar Series from 2011 to 2021. He also entered 27 races in Formula One for the Toro Rosso team during 2008 and the start of 2009.
Michel Jourdain Lascurain, better known as Michel Jourdain Jr., is a Mexican racecar driver, best known for winning two Champ Car races in 2003. He is the 2020 Super Copa GTM Champion.
Scott Donald Pruett is an American retired racing driver who has competed in numerous disciplines of the sport. In the 1980s, Pruett established himself as a top sports car racer, winning two IMSA GTO, and three Trans-Am championships. Later in his career, he won five Grand-Am championships. In the 1990s, Pruett competed in CART Championship cars. After a brief stint in NASCAR, he returned to sports cars.
Marco Michael Andretti is an American auto racing driver. He competes part-time in the NASCAR Craftsman Truck Series, driving the No. 04 Chevrolet Silverado for Roper Racing and part-time in the ARCA Menards Series, driving the No. 17 Chevrolet SS for Cook Racing Technologies.
Josef Nicolai Newgarden is an American racing driver who races the No. 2 Team Penske Dallara/Chevrolet in the IndyCar Series. He was the 2011 Indy Lights champion, and 2017 and 2019 IndyCar Series Champion. He won the 2023 and 2024 Indianapolis 500, and the 2024 24 Hours of Daytona, becoming the 16th driver to win both an Indy 500 and a 24 Hours of Daytona, as well as the first driver since Helio Castroneves to win the Indianapolis 500 two years in a row.
Conor J. Daly is an American racing driver. He is best known for competing in the IndyCar Series, last driving the No. 24 Chevrolet for Dreyer & Reinbold Racing. He also competes occasionally in NASCAR, and has also raced in the GP2 Series, and Road to Indy.
Pietro Fittipaldi da Cruz is a Brazilian racing driver currently competing in the IndyCar Series driving the No. 30 Honda for Rahal Letterman Lanigan Racing, alongside serving as a test and reserve driver for Formula One team Haas. Fittipaldi is the grandson of two-time Formula One world champion Emerson Fittipaldi and brother of racing driver Enzo Fittipaldi. He made his Formula One debut with Haas at the 2020 Sakhir Grand Prix, replacing the injured Romain Grosjean, becoming the fourth member of the Fittipaldi family to race in Formula One.
Álex Palou Montalbo is a Spanish racing driver who drives for Chip Ganassi Racing in the IndyCar Series, where he won the 2021 and 2023 championships, and winner in the $1 Million Challenge. He is the first Spanish racing driver to win a National Championship in American open-wheel racing history and also the first Spaniard to win in the GP3 Series.
Enaam Ahmed is a Pakistani and British racing driver. He currently competes in the 2023 Indy NXT driving for Cape Motorsports. Ahmed previously competed in the 2022 Indy Pro 2000 Championship driving for Juncos Hollinger Racing and previously drove for RP Motorsport in the 2021 season.
Patricio "Pato" O'Ward Junco is a Mexican professional auto racing driver who competes full-time in the IndyCar Series, driving the No. 5 Chevrolet for Arrow McLaren. He is the 2018 Indy Lights champion. He is signed to the McLaren Driver Development Programme and McLaren's reserve driver for the 2024 Formula One season.
Jagger Jones is an American professional racing driver. He competed in Indy NXT for Cape Motorsports in 2023. Jones previously competed in the U.S. F2000 National Championship with Cape Motorsports. He also competed in what is now the ARCA Menards Series West full-time in 2019, driving the No. 6 Ford for Sunrise Ford Racing.
Sting Ray Robb is an American racing driver. He competes in the IndyCar Series, driving the No. 41 Dallara-Chevrolet for A. J. Foyt Enterprises.
Hans Christian Rhod Rasmussen is a Danish race car driver from Copenhagen. He currently drives full-time for Ed Carpenter Racing in the IndyCar Series, driving the No. 20/33 Chevrolet.
James Roe Jr. is an Irish racing driver. He currently competes in Indy NXT driving the No. 29 Honda for Andretti Autosport. He previously drove for TJ Speed Motorsports in 2022. Roe previously competed in the Indy Pro 2000 Championship with Turn 3 Motorsport. Roe is a nephew of former racing driver Michael Roe.
Kyffin Simpson is a Caymanian racing driver competing in the IndyCar Series with Chip Ganassi Racing. He won the 2023 European Le Mans Series championship with Algarve Pro Racing.
Nolan Siegel is an American racing driver. He currently competes full-time in the IndyCar Series with Arrow McLaren. In 2024, Siegel won the 24 Hours of Le Mans LMP2 class on his first attempt, with United Autosports. Siegel previously competed in the U.S. F2000 National Championship with DEForce Racing and Indy NXT with HMD Motorsports.
The 2023 USF Pro 2000 Championship was the 25th season in series history and the first under the USF Pro 2000 moniker. When the top rung of the Road to Indy ladder system, Indy Lights, was bought by Penske Entertainment in 2021 and the lower level series changed sanctioning to the United States Auto Club, changes were made to the other championships in the ladder that resulted in the championship being rebranded for 2023. This, together with the Indy Lights being rebranded to Indy NXT, effectively ended the "Road to Indy" branding, with the three championships below Indy NXT now collectively called "USF Pro Championships Presented by Cooper Tires".
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