Board track, or motordrome, racing was a type of Motors port, popular in the United States between the second and third decades of the 20th century, where competition was conducted on oval race courses with surfaces composed of wooden planks. Although the tracks most often used motorcycles, many different types of racing automobiles also competed, enough so as to see the majority .
By the early 1930s, board track racing had fallen out of favor, and into eventual obsolescence, due to both its perceived dangers and the high cost of maintenance of the wooden racing surfaces. However, several of its most notable aspects have continued to influence American motorsports philosophy to the present day, including.
A technical emphasis on raw speed produced by the steep inclinations; ample track width to allow steady overtaking between competitors; and the development of extensive grandstands surrounding many of the courses.The banking in the corners of board tracks started at 25° in 1911, like bicycles tracks were.
The banking was increased until 60° was common. The effect of the banking was higher cornering speed and higher G-force on drivers. Fans sat on the top of the track looking down at the racers. 1920s American national championship races contested at such venues.
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