1915 AAA Championship Car season

The 1915 AAA Championship Car season consisted of 27 races, beginning in San Diego, California on January 9 and concluding in San Francisco, California on November 25. AAA did not award points towards a National Championship during the 1915 season, and did not declare a National Champion. Ralph DePalma was the winner of the Indianapolis 500.

The de facto National Champion as polled by the American automobile journal Motor Age, was Earl Cooper. Points were not awarded by the AAA Contest Board during the 1915 season. Cooper was named the champion by Chris G. Sinsabaugh, an editor at Motor Age, based upon merit and on track performance. A points table was created retroactively in 1927. At a later point, it was recognized by historians that these championship results should be considered unofficial.

Leading National Championship standings
The points paying system for the 1909–1915 and 1917–1919 season were retroactively applied in 1927 and revised in 1951 using the points system from 1920.

General references

 * http://www.champcarstats.com/year/1915.htm accessed 8/21/15
 * http://www.teamdan.com/archive/gen/indycar/1915.html accessed 8/21/15