8 - 10/2

7 - 10/3

The 2020 London Marathon is set for 4 October, having been postponed from the traditional April scheduling due to the COVID-19 outbreak.[2] The mass event was subsequently cancelled, with a modified elite-only race scheduled to take place.[3] The race often has a title sponsorship, and is currently branded as the "Virgin Money London Marathon".

https://en.wikipedia.org/wiki/London_Marathon