01 February 2021, 10am
The announcement that the BAA Boston Marathon will be held on 11 October compacts four of the six races that make up the World Marathon Majors series into a period of 15 days.
The full schedule is as follows:
27 September – BMW Berlin Marathon
3 October – Virgin Money London Marathon
10 October – Bank of America Chicago Marathon
11 October – BAA Boston Marathon
17 October – Tokyo Marathon
7 November – TCS New York City Marathon
London, Tokyo and now Boston have all transferred from traditional dates in the spring on the assumption that anti-covid precautions would still be in place in spring and make it impossible to stage mass-participation events.