New Mustang GT3 Claims First IMSA GTD PRO Win; AWA Corvette, Tower ORECA Win GTD, LMP2

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IMSA Gear No. 22 United Autosports USA Elevated to Maiden LMP2 Rolex 24 Victory Promoted to LMP2 Win, United Autosports USA Adds to Team’s Excellent Endurance Record

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.

The 2025 IMSA SportsCar Championship (known for sponsorship reasons as the 2025 IMSA WeatherTech SportsCar Championship) is an ongoing motor racing championship and the 55th racing season sanctioned by the International Motor Sports Association, which traces its lineage back to the 1971 IMSA GT Championship.

Jan 22, 2025 · IMSA was formed in 1969 by NASCAR founder Bill France and the husband and wife duo of John and Peggy Bishop as a nationwide sports car endurance racing series to complement the burgeoning-but ...

See all the races and behind the screen coverage for the 2024 IMSA WeatherTech SportsCar Championship. IMSA develops and races the most technically advanced cars on the planet. Take a look...

The IMSA SportsCar Championship, currently known as the IMSA WeatherTech SportsCar Championship under sponsorship, is a sports car racing series based in the United States and Canada and organized by the International Motor Sports Association (IMSA).

The latest IMSA breaking news, analysis, features and more from Motorsport.com's team of international reporters and correspondents

IMSA’s flagship series competes at 11 of North America’s leading sports car venues.