1980 IndyCar season

The 1980 IndyCar season, the second in the CART era of U.S. open-wheel racing, consisted of 12 races, beginning in Ontario, California on April 13 and concluding in Avondale, Arizona on November 8. The PPG Indy Car World Series Drivers' Champion and Indianapolis 500 winner was Johnny Rutherford. Rookie of the Year was Dennis Firestone. The entire season, including the 64th Indianapolis 500, was to be co-sanctioned by the both the USAC and CART, however the USAC withdrew from the agreement after the fifth race.

The season-opening race at Phoenix, set for March 2, was cancelled due to local flooding and washed out roads.

Drivers and constructors
The following teams and drivers competed for the 1980 CART World Series.

Calendar
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 * CART and USAC united in 1980 under the banner of the Championship Racing League (CRL).The first five races of the season were run under CRL banner sanction by USAC. The union dissolved after the Mid-Ohio race. CART sanctioned the seven remaining races on the schedule and combined the results of those along with the CRL events for their championship.

Points Breakdown
Points were awarded on the following basis: