A provisional seven-round calendar was announced on 26 September 2020, with the option to add another round at Hockenheimring. A plan to resurrect the Pau Grand Prix after it was cancelled in 2020 due to the COVID-19 pandemic did not come to fruition. The calendar was then further concretized on 3 December 2020, adding an event in Imola and leaving a ninth event to be announced. On 9 March 2021, the Portimão round shifted one week later, and it would be the official support round of the 2021 Portuguese Grand Prix. On 27 April 2021, it was confirmed that the series will be held over eight rounds.