The Hoosier Grand Prix was a sports car, Formula Libre, and Champ Car race held at Indianapolis Raceway Park between 1961 and 1994. The race began as a round of the USAC Road Racing Championship. After being run for sports cars in its first year, the race switched to Formula Libre for the next two. After not being held in 1964, the race shifted to the USAC National Championship Trail for Champ Cars in 1965, running until 1970. The IMSA GT Championship revived the race in 1973, and again in 1994.
Results Year Overall winner(s) Entrant Car Distance/Duration Race Title Report USAC Road Racing Championship 1961 Augie Pabst Harry Woodnorth Scarab Mk II-Chevrolet Hoosier Grand Prix report 1962 Jim Hall Chaparral Cars Lotus 18-Climax Hoosier Grand Prix report Non-championship 1963 Dan Gurney Frank Arciero Lotus 18-Climax Hoosier Grand Prix report 1964 Not held USAC Championship Car 1965 Mario Andretti Al Dean Brawner Hawk / Ford Hoosier Grand Prix report 1966 Mario Andretti Dean Racing Enterprises Brawner Hawk / Ford Hoosier Grand Prix report 1967 Mario Andretti Dean Racing Enterprises Brawner Hawk / Ford Indianapolis 150 report 1968 Heat 1 Al Unser Retzloff Racing Team Lola T150 / Ford Indy 200 report Heat 2 Al Unser Retzloff Racing Team Lola T150 / Ford 1969 Heat 1 Dan Gurney Dan Gurney Eagle / Gurney-Weslake Ford Indy 200 report Heat 2 Peter Revson Repco-Brabham Brabham BT25 / Repco 1970 Al Unser Vel's Parnelli Jones Ford Lola T150 / Ford Indy 150 report 1971–1972 Not held IMSA GT Championship 1973 Peter Gregg Peter Gregg Porsche Carrera 3 hours 3 Hours of Indianapolis report 1974–1993 Not held 1994 Eliseo Salazar Giampiero Moretti MOMO Ferrari 333 SP 2 hours Indy Grand Prix report
External links Racing Sports Cars: IRP archive Champ Car Stats: IRP archive