GT America Series

The GT America Series is a sports car racing series based in the United States which runs as a support series to the GT World Challenge America. It is managed by the Stéphane Ratel Organisation and sanctioned by the United States Auto Club. 
History.
The series was announced in October 2020, replacing the GT Sports Club America and the Sprint category of the GT4 America Series. The first race was run on March 6, 2021 and was won by George Kurtz.
Class structure.
The series places strong emphasis on Bronze-rated and gentleman drivers in the single-driver sprint race format. Races are 40 minutes in length, with no required pit stops. Entries are split into four classes; GT2, GT3 Overall, GT3 Masters, and GT4. The Masters class is exclusively for drivers above the age of 50, similar to the former GT Sports Club's Titanium class. Previous generation GT3 machinery is also homologated for the competition.