Manchester and Chicago Marathons added to coronavirus casualty list
Manchester was due to take place one week after the rescheduled London Marathon which, as it stands, is still set to go ahead on 4 October.
The Tokyo marathon, which took place in March with elite fields only, is the only one of the six World Marathon Majors events to have been held so far in 2020.
Manchester organisers have set a 2021 date of Sunday, 11 April. A statement read:
"The ongoing uncertainty around restrictions relating to Covid-19 has made confirming the necessary arrangements impossible at this time. We apologise to the many of you who were looking forward to running in this much-loved event, but it was important to us a decision was taken in good time, before runners stepped up their training to longer distances."
The Chicago Marathon has also been cancelled. This announcement follows Boston and New York, which were also called off because of the pandemic.
"My hope was to see everyone on the start line on 11 October," said race director Carey Pinkowski.
"Our highest priority has always been the safety of our participants and our volunteers."