1909 AAA Championship Car season
The 1909 AAA Championship Car season consisted of 24 races, beginning in Portland, Oregon on June 12 and concluding with a point-to-point race from Los Angeles, California to Phoenix, Arizona on November 6. There were three events sanctioned by the Automobile Club of America in Lowell, Massachusetts. The de facto National Champion as poled by the American automobile journal "Motor Age" was Bert Dingley. Points were not awarded by the AAA Contest Board during the 1909 season. Champions of the day were decided by C. G. "Chris" Sinsabaugh, an editor at "Motor Age