International Charity runner registration for Tokyo Marathon 2026 is now open through Realbuzz Group, the world’s leading charity running platform and the official international charity partner of the Tokyo Marathon.

More information on the realbuzz website:
https://www.realbuzz.com/events/tokyo-marathon-2026

To learn more about Realbuzz Group becoming the official international charity partner from 2026, please see the announcement here:
https://tokyo42195.org/en/news/en_241021.html