Formula 1 has announced the Nurburgring and Imola will return to the calendar in 2020 after lengthy spells away, with Portimao also added on the revised schedule.

The opening 10 European races have already been revealed by championship officials, which includes a first visit to Mugello for Ferrari’s 1000th world championship entry.

The Nurburgring last hosted a F1 grand prix in 2013 and will be run on October 7-9, followed by F1’s return to Portugal for the first time in 24 years at the Algarve International Circuit two weeks later.

Imola, who’s most recent entry on the F1 calendar was back in 2006, is confirmed as a two-day event from October 31-November 1, with Friday’s two practice sessions set to be scrapped – although a format is yet to be agreed.

F1 chiefs have realigned the aim to reach 15-18 races by mid-December, which is on course to finish in Abu Dhabi. The final details of this season’s calendar are still to be finalised, but is due to be released in the coming weeks.

Reports suggest F1 is considering staging two rounds in Asia, with Vietnam and Malaysia tipped as the most likely venues.

“We are pleased that we continue to make strong progress in finalising our plans for the 2020 season and are excited to welcome Nurburgring, Portimao and Imola to the revised calendar,” said F1 CEO Chase Carey.

“We want to thank the promoters, the teams, and the FIA for their full support in our efforts to bring our fans exciting racing this season during an unprecedented time.

“We also want to pay tribute to our incredible partners in the Americas and look forward to being back with them next season when they will once again be able to thrill millions of fans around the world.”

F1 has also confirmed races in Brazil, Canada, Mexico and the US cannot be staged this year due to local restrictions surrounding the ongoing COVID-19 pandemic.