Indy Lights is a developmental racing series that is sanctioned by the Indy Racing League (IRL). The series is considered to be the top level of the Road to Indy ladder, which is a series of racing development programs that are designed to help aspiring drivers progress to the highest levels of American open-wheel racing. Indy Lights is one step below the NTT IndyCar Series, which is the premier level of American open-wheel racing. The series features a mix of oval and road course races and is known for its competitive racing and close finishes. Many of the top drivers in the NTT IndyCar Series have graduated from Indy Lights, and the series is considered to be an important stepping stone for drivers who are looking to make the jump to the highest levels of American open-wheel racing.