The series was sanctioned by IMSA, and it has appeared on the support bill for ALMS, Champ Car, Grand-Am, Indy Racing League and Formula One events.
Серия санкционирована IMSA и проходит в рамках гонок поддержки ALMS, Champ Car, Grand-Am, Indy Racing League и Гран-при Формулы-1.