2021 GT4 America Series

The season began on 5 March at Sonoma Raceway and ended on 17 October at Indianapolis Motor Speedway.

[2] In June, Sebring International Raceway was announced as the CTMP round's replacement.

Entries are required to complete 75% of the winning car's race distance in order to be classified and earn points.

Individual drivers are required to participate for a minimum of 25 minutes in order to earn championship points in any SprintX race.

Bold – Pole Italics – Fastest Lap †: Post-event penalty.