The Freedom 100 was an automobile race held annually at the Indianapolis Motor Speedway in Speedway, Indiana, as part of the Indy Lights Presented by Cooper Tires. The event was a support race for the IndyCar Series Indianapolis 500, and since 2005, it was held on the Friday preceding the Indianapolis 500, the day known as "Carb Day". The Freedom 100 was the second race annually at the Indianapolis Motor Speedway, the other being the Grand Prix on the combined road course.