Mario Andretti won the Rex Mays 300 USAC Indy Car race on the 2.6-mile Riverside International Raceway road course, Riverside, CA. Al Unser was second followed by Dan Gurney, Bobby Unser, Johnny Rutherford and Swede Savage.
LeeRoy Yarbrough... Died ... A NASCAR racer. His best season was 1969 when he won seven races and tallied 21 top ten finishes. During his entire career from 1960-1972, he competed in 198 races, scoring 14 wins, 65 top fives, 92 top tens, and 10 poles. His racing number was 98. LeeRoy ran the Indy 500 3 times with a best finish of 19th in 1970.
Taylor Andrews won the Sprint Car race at the East Bay Raceway Park, Tampa, FL.