International Motor Contest Association
Overview
 
The International Motor Contest Association (IMCA) was organized in 1915 by J. Alex Sloan, and is currently the oldest active auto racing
Auto racing
Auto racing is a motorsport involving the racing of cars for competition. It is one of the world's most watched televised sports.-The beginning of racing:...

 sanctioning body in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. IMCA is currently headquartered in Vinton, Iowa
Vinton, Iowa
-2010 census:The 2010 census recorded a population of 5,257 in the city, with a population density of . There were 2,299 housing units, of which 2,187 were occupied....

, 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 Supernationals at Boone Speedway
Boone Speedway
Boone Speedway is a 1/4-mile high-banked dirt oval raceway located in Boone, Iowa. Races are held on Saturday nights sanctioned by the IMCA. Regular events include modifieds, stock cars, hobby stocks, SportMods, dwarf cars, and four-cylinder front-wheel-drive cars.-SuperNationals:During the first...

 in Boone, Iowa
Boone, Iowa
Boone is a city in and the county seat of Des Moines Township, Boone County, Iowa, United States. It is the principal city of the 'Boone, Iowa Micropolitan Statistical Area', which encompasses all of Boone County. This micropolitan statistical area, along with the 'Ames, Iowa Metropolitan...

.
Sloan, a native of Pittsburgh, Pennsylvania
Pittsburgh, Pennsylvania
Pittsburgh is the second-largest city in the US Commonwealth of Pennsylvania and the county seat of Allegheny County. Regionally, it anchors the largest urban area of Appalachia and the Ohio River Valley, and nationally, it is the 22nd-largest urban area in the United States...

, was instrumental in establishing the IMCA and ran more races than all other promoters in the United States combined, all under IMCA sanction.
 
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