Chicagoland Speedway is a 1.5mi tri-oval speedway in Joliet, Illinois, southwest of Chicago. The speedway opened in 2001 and currently hosts NASCAR racing including the opening event in the NASCAR Cup Series Chase for the Championship. Until 2011, the speedway also hosted the IndyCar Series, recording numerous close finishes including the closest finish in IndyCar history. The speedway is owned and operated by International Speedway Corporation and located adjacent to Route 66 Raceway.