1905 AAA Championship

The 1905 AAA Championship was second season of American open-wheel racing recognised by, and the first organised with the express intention of being the national championship. It was contested over five rounds, four of which were held on dirt tracks as well as the second running of the Vanderbilt Cup.

Grand Prix Racing

 * See: 1905 circuit racing season

The 1905 Vanderbilt Cup is also considered by to be a Grand Prix, and was therefore also a part of the main circuit racing season. This was true of certain AAA Championship races until the First World War.

Points System

 * See: List of American open-wheel points systems