![Indianapolis, Indiana is located in USA](https://upload.wikimedia.org/wikipedia/commons/thumb/2/20/Usa_edcp_location_map.svg/250px-Usa_edcp_location_map.svg.png)
Indianapolis has a diverse economy, relying on trade, transportation, and utilities, professional and business services, education and health services, government, retail trade, leisure and hospitality, and manufacturing.[8] Three Fortune 500 companies are based in the city: Anthem Inc., Eli Lilly and Company, and Calumet Specialty Products Partners.[9] Indianapolis hosts several notable sporting events annually, including the Brickyard 400, Grand Prix of Indianapolis, NFL Scouting Combine, the largest half marathon in the U.S.,[10] and the largest single-day sporting event in the world, the Indianapolis 500. The cars competing in the latter race are known as IndyCars as a reference to the event. As headquarters for the National Collegiate Athletic Association (NCAA), the city frequently hosts the Men's and Women's basketball tournaments. Indianapolis hosted Pan American Games X in 1987 and Super Bowl XLVI in 2012.