2021 calendar


Round 1 / 26 - 28 March / Road Atlanta, Braselton

 

Round 2 / 14 - 16 May / Road America, Elkhart Lake

 

Round 3 / 25 - 27 June / Mid Ohio Sports Car Course, Mid Ohio

 

Round 4 / 16 - 18 July / Brainerd International Raceway, Brainerd

 

Round 5 / 24 - 26 September / Virginia International Raceway, Alton

 

Round 6 / 5 - 7 November / Circuit of the Americas, Austin