At the moment F1 has only confirmed an eight-race calendar in Europe, with double-header races in Austria and Britain. A 15-18 race season is planned, however, with an extended schedule likely to be published within weeks.

“We have made significant progress with existing and new promoters on the revised calendar and have been particularly encouraged by the interest that has been shown by new venues in hosting a Formula 1 race during the 2020 season,” said Formula 1’s promoters in a statement.

Mugello and Imola have been mooted as stand-in venues for Formula 1 this year, and the series is expected to confirm races at existing venues, including Russia, Mexico and the Middle East shortly.

In a statement, Singapore’s race promoter said that it was now planning for the return of the race in 2021. “Apart from the closure of the event venue, other challenges include ongoing mass gathering and worldwide travel restrictions,” said Singapore GP Pte Ltd.

“With these limitations, which continue to remain in place, building and construction work of the circuit, which normally commences in May, have not been able to commence. We are therefore unable to complete the race circuit infrastructure in time for the race to take place.”

A statement from Formula 1 added: “As a result of the ongoing challenges presented by COVID-19, we and our promoters in Azerbaijan, Singapore and Japan have taken the decision to cancel their races for the 2020 season. These decisions have been taken due to the different challenges our promoters face in those countries.

“In Singapore and Azerbaijan the long lead times required to construct street circuits made hosting the events during a period of uncertainty impossible and in Japan, ongoing travel restrictions also led to the decision not to proceed with the race.”