IMSA President John Doonan discussed in further detail the changes to the 2026 WeatherTech SportsCar Championship calendar, headlined by Road America joining the Michelin Endurance Cup with a six-hour ...
IMSA President John Doonan said that making Road America a six-hour Michelin Endurance Cup round will bring “excitement” to fans and series stakeholders alike, in a move that’s aimed to maintain ...
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