The International Motor Contest Association (IMCA) was organized in 1915 by J. Alex Sloan, and is currently the oldest active auto racing sanctioning body in the United States. IMCA is currently headquartered in Vinton, Iowa, and features several classes and divisions of weekly racing in six geographical regions of the United States. The IMCA championships are held annually at the IMCA Super Nationals at Boone Speedway in Boone, Iowa. Another major race is the Harris Clash held at the Deer Creek Speedway in Spring Valley, Minnesota which was developed as a race with somewhat of an emphasis on chassis manufacturers. The IMCA Super Nationals is the biggest event held by IMCA. It happens once a year during the first week of September. This event has the most IMCA drivers in one event. More information...
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