The Indianapolis Motor Speedway is the world's largest spectator sporting facility. It plays host annually to three events in three major racing series: Indianapolis 500 Mile Race (IZOD IndyCar Series), Brickyard 400 (NASCAR Sprint Cup Series) and Red Bull Indianapolis GP (MotoGP World Championship). The Indianapolis 500 and Brickyard 400 take place on the 2.5-mile oval, while the Red Bull Indianapolis GP is contested on the 16-turn, 2.621-mile road course.