July 23, 2021 – August 8, 2021 – The 2020 summer Olympic Games, the Games of the XXXII Olympiad, take place in Tokyo, Japan. The marathon was originally due to take place in Tokyo, but concerns over summer heat prompted event organisers to move the race to the Japanese city of Sapporo, more than 800km to the north.
The approved route starts with a large loop of approximately half-marathon length followed by two laps of a second smaller loop of around 10km. The start and finish will be in Odori Park.
The Tokyo 2020 Olympic Games feature 339 events in 33 different sports, encompassing 50 disciplines.