A decision over the staging of the London Marathon has been pushed back to August 7.
An update was due on Tuesday to rule on the feasibility of a socially-distanced marathon on October 4, but discussions remain ongoing between organisers and NHS Trusts in the capital, as well as emergency services and local authorities.
There has been significant doubt around the chances of a mass-participation start, which would leave only the elite races. However, the prospect of a wider race going ahead in an altered format remains a possibility.
Responding to the publication of new mass-participation guidelines issued by UK Athletics earlier this month, London Marathon event director Hugh Brasher wrote to runners on Monday.
He said: ‘There are areas within these documents requiring further consultation with local NHS Trusts, the emergency services and local authorities which means we are still unable to confirm our plans for another 10 days, when that consultation will have been completed.
‘I realise that this uncertainty is far from ideal and I would like to thank you for your patience and understanding in these very challenging circumstances.’