Official site of imsa, international motor sports association featuring the tudor united sportscar championship, continental tire sportscar challenge & more. The united states' cycling organization, including uspro (track), uscf (road), norba (mountain biking), and ncca (collegiate cycling) programs.. Selinsgrove speedway will present the first of six races sanctioned by the united racing company (urc) traveling 360 sprint car contingent at 6 p.m. this saturday.
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