1977 USAC Championship Car season

The 1977 USAC Championship Car season consisted of 14 races, beginning in Ontario, California on March 6 and concluding in Avondale, Arizona on October 29. The USAC National Champion was Tom Sneva and the Indianapolis 500 winner was A. J. Foyt. The schedule included a road course for the first time since 1970.

Schedule and results
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 * The Machinist Union 150, scheduled for September 24, was first postponed due to rain, and was eventually cancelled on October 3.