1970 USAC Championship Car season

The 1970 USAC Championship Car season consisted of 18 races, beginning in Avondale, Arizona on March 28 and concluding at the same location on November 21. There was also one non-championship event at Pikes Peak, Colorado. The USAC National Champion and Indianapolis 500 winner was Al Unser. After this season, dirt courses did not reappear in the USAC Championship until 1981-82.

Schedule and results
{{legend|#FFFFFF|Paved/Dirt Oval|border=solid 1px #AAAAAA}} {{legend|#D0E7FF|Road Course/Hill Climb|border=solid 1px #AAAAAA}} {{legend|#FB9902|Non-championship race|border=solid 1px #AAAAAA}} Scheduled for 300 miles, stopped early due to rain.