“Boardtrack”, or “Motordrome”, racing was a type of motorsport, popular in the United States between the second and third decades of the 20th century. Competition was conducted on an oval race course with surfaces composed of wooden planks.

The banking in the corners of board tracks started at 25° in 1911. As the sport progressed, the banking was increased until 60° was common. The effect of the banking was higher cornering speed and higher G-force on riders.

Fans sat on the top of the track looking down at the racers. When a driver lost control of a Bike in a corner, he could slip up off the track and into the crowd. An incident could and sometimes did kill spectators in the crowds.