The series is sanctioned by SCCA Pro Racing, the professional racing division of the Sports Car Club of America.
The season began on 5 April at Barber Motorsports Park as part of the Honda Indy Grand Prix of Alabama and concluded on 15 September at Sebring International Raceway after six rounds.
All races were held on permanent road courses in the United States.
On 21 February 2019 the series announced the addition of Road America to the schedule.
[1] Bold – PoleItalics – Fastest Lap† — Did not finish, but classified