The
1980 USAC Championship Car season consisted of five races, beginning in
Ontario,
California on April 13 and concluding in
Lexington,
Ohio on July 13. The
USAC National Champion and
Indianapolis 500 winner was
Johnny Rutherford. The season was planned to be 12 races, each co-sanctioned with
CART, however USAC withdrew from the agreement after the fifth race.