The TUDOR United SportsCar Championship (USC) will be a sports car racing series based in the United States and Canada and organized by the International Motor Sports Association (IMSA). It is a result of a merger between two existing North American sports car racing series, the American Le Mans Series and Rolex Sports Car Series. The initial name of the series was announced on March 14, 2013, while Rolex SA signed their Tudor brand to a five year title sponsorship deal.
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Last Updated: 2/5/2015 3:43 PM