Brazil's Helio Castroneves matched the all-time record by winning his fourth career Indianapolis 500 on Sunday, holding off Alex Palou over the final laps for the victory at age 46. Castroneves -- who also won in 2001, 2002 and 2009 -- joined US legends AJ Foyt, Al Unser Sr and Rick Mears as four-time winners at the famed 2.5-mile (4km) Indianapolis Motor Speedway oval. js/sst