USAC Mini-Indy (professional) (USA)

Season Champion Driver Chassis
1977* Tom Bagley Zink Z11 Herm Johnson Lola T324
1978 Bill Alsup Argo JM2
1979 Dennis Firestone March
1980 Peter Kuhn Ralt RT1/RT5
*Bagley and Johnson tied in the points and were declared co-champions.