IMSA is a group that runs big car races in the U.S., like the famous 24‑hour race at Daytona. It sets rules and schedules for teams that drive high‑performance sports cars.
IMSA stands for the International Motor Sports Association, an American organization that sanctions sports car racing events such as the 24 Hours of Daytona and the IMSA WeatherTech SportsCar Championship.
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Frontstretch Podcast Network
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The International Motor Sports Association (IMSA) is a North American sports car racing sanctioning body based in Daytona Beach, Florida, under the jurisdiction of the ACCUS arm of the FIA. It was started by John Bishop, a former executive director of SCCA, and his wife Peggy in 1969 with help from Bill France Sr. of NASCAR.