Road America is a permanent race track located near Elkhart Lake, Wisconsin, United States. It has been part of the GPGSL calendar four times, hosting the United States Grand Prix in Season 7, Season 9, Season 11 and Season 12. In Season 9 Ed Greenhalgh took his first win for Martini Paddock Racing, in Season 11 Christopher Hinz took his maiden GP win in his 110th start.
|7||United States Grand Prix||Ruben Greidanus||Team Shadow||58min 42.031s||38|
|9||Ed Greenhalgh||Martini Paddock Racing||35min 54.924s||22|
|11||Christopher Hinz||Aston Martin Racing||40min 17.494s||24|
|12||Tobias Kederer||Alpha Motorsports||40min 25.597s||24|