The 1925 AAA National Championship (officially the AAA Championship Car season) was a prominent early American open-wheel racing series sanctioned by the American Automobile Association. It featured 11 championship races, running from March 1 to November 29, primarily on board tracks and dirt ovals, with events held at venues like Culver City Speedway in California (which hosted both the opener and finale), Fresno, Charlotte, and the iconic Indianapolis Motor Speedway. The season also included additional non-championship races. This era emphasized high-speed board track competition, though the Indianapolis 500 remained the centerpiece event.
Peter DePaolo emerged as the clear national champion, driving for the Duesenberg team. He secured five victories (including the Indianapolis 500, where he became the first driver to average over 100 mph, leading 115 laps) and amassed 3,260 points under the period’s scoring system, which rewarded finishes across the schedule. Tommy Milton finished second in the standings with 1,745 points and two wins, while other notable drivers like Bob McDonogh contributed strong performances on board tracks. DePaolo’s consistent excellence, highlighted by his Indy triumph and multiple other top results, solidified his status as the dominant force of the year.

March 1, 1925

May 11, 1925

May 30, 1925

June 13, 1925

July 4, 1925

