Formula One plans to start its stalled season with two races behind closed doors in Austria in July before more of the same at Britain's Silverstone circuit, insiders said on Monday.

If they go ahead as planned, it will be a first for a sport that has yet to see a circuit host two races in a single season or any grand prix without paying spectators since the championship started in 1950.

The bigger challenge will likely be stringing together a championship of up to 18 races from continent to continent in a world still wrestling with the COVID-19 pandemic and mass fatalities.