The International Motor Sports Association (IMSA) is a sanctioning body for sports car racing in North America. Founded in 1969, IMSA sanctions a variety of racing series, including the IMSA WeatherTech SportsCar Championship, the IMSA Michelin Pilot Challenge, and the IMSA VP Racing SportsCar Challenge.
IMSA sanctions sports car racing events across North America, providing rules, regulations, and technical support for participating teams and manufacturers. The organization focuses on promoting competitive and exciting racing, with a mix of prototype and GT cars.
IMSA has a long and rich history in sports car racing, with iconic events such as the Rolex 24 at Daytona and the Mobil 1 Twelve Hours of Sebring. The organization continues to be a major force in sports car racing, attracting top teams, drivers, and manufacturers from around the world.
