Sanctioning Bodies

The Automobile Club de l'Ouest is the birthplace of endurance racing, organizing the legendary 24 Hours of Le Mans since 1923. The ACO oversees the FIA World Endurance Championship and sets the technical regulations that define prototype and GT racing worldwide. Their commitment to innovation has made Le Mans the ultimate proving ground for automotive technology.

IMSA is North America's premier sports car racing organization, running the WeatherTech SportsCar Championship. From the Rolex 24 at Daytona to Petit Le Mans, IMSA delivers world-class endurance racing across legendary American circuits. Their multi-class format brings together prototypes and GT cars in spectacular door-to-door competition.

The 24 Hours of LeMons proves that endurance racing isn't just for professionals. With a $500 car budget and a healthy sense of humor, LeMons has created a grassroots movement that welcomes everyone from first-time racers to seasoned veterans. It's endurance racing at its most accessible and entertaining.

American Endurance Racing bridges the gap between amateur competition and professional sports car racing. AER events feature affordable entry fees, flexible car rules, and races ranging from 7 to 14 hours. Their focus on driver development and team-building has made them a favorite among enthusiasts looking to take their track experience to the next level.

The Trans Am Series is America's road racing series, with a heritage stretching back to the golden era of American muscle cars. Today's Trans Am continues that tradition with thunderous V8-powered machines competing in sprint and endurance formats. The series has launched the careers of racing legends and remains a cornerstone of American motorsport.

SRO Motorsports Group is the global leader in GT racing, organizing the prestigious GT World Challenge series across Europe, America, Asia, and Australia. Founded by Stéphane Ratel, SRO has revolutionized GT racing with innovative formats like the legendary 24 Hours of Spa and the Intercontinental GT Challenge. Their commitment to close competition and manufacturer parity has made GT3 the most popular form of GT racing worldwide.