Join us for the Tokyo Legacy Half Marathon 2025 Charity
WaterAid Japan is an official charity of the Tokyo Legacy Half Marathon 2025 to be held on Sunday19 October, 2025.
Join Team WaterAid to bring clean water to the world!
We are calling for runners. Would you like to be part of this unique half marathon and run across the very center of Tokyo?
*Charity Runner application has closed on May 14, 2025 as we've reached maximum entrants.
Donation application period | 11:00am JST Friday 25 April, 2025 - 5:00pm JST Monday 19 May, 2025
Join Team WaterAid for the Tokyo Legacy Half Marathon 2025 to deliver clean water.
Together we move forward to achieve the world where everyone, everywhere has access to clean water!

How to participate
1. Join as a Charity Runner
By making a donation, you can join the Tokyo Legacy Half Marathon 2025 as a Charity Runner.
Application information |
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Maximum entrants |
25 (*First come, first served) *Charity Runner application has closed on May 14, 2025 as we've reached maximum entrants. |
Donation amount |
50,000 yen or more / person |
Participation fee |
In addition to your donation, the Tokyo Legacy Half Marathon 2025 participation fee (13,200 yen) will be charged. For more details, please visit the Official Website. |
Why you should join our team? |
● Complimentary WaterAid goods ● Invitation to our running community ● Team WaterAid cheering/supporting along the race ● Project updates from the field via newsletter/ emails |
* Due dates for the first and second steps (donation/charity runner application and donation payment) are soft deadline. All three steps must be completed by Friday 23 May, 2025 05:00PM JST
*Charity Runner application has closed on May 14, 2025 as we've reached maximum entrants.
Donation application period | 11:00am JST Friday 25 April, 2025 - 5:00pm JST Monday 19 May, 2025
2.Join only by donation
If you are not willing to join the race as a Charity Runner, you can still join to support our work by making a donation.
Donation application period | 11:00am JST Friday 25 April, 2025 - 5:00pm JST Monday 19 May, 2025
Voices from our past runners

Tokyo Marathon Foundation/ WaterAid Japan
Tokyo Marathon Foundation/ WaterAid Japan
I successfully completed my first half marathon! The weather was perfect on the race day, and I was able to finish with a PB. During training, there were times when I couldn’t get the results I wanted and felt like giving up, but I kept going with the thought, “By running, I can help someone.” Thanks to that, I was able to push through to the very end. I believe this challenge will have a positive impact on both my daily life and my work going forward. If I get the chance, I’d definitely like to take on another charity run. To everyone who supported me—thank you so much!

Tokyo Marathon Foundation/ WaterAid Japan
Tokyo Marathon Foundation/ WaterAid Japan
I participated in a half marathon for the first time in over a decade. Although I was slightly undertrained, I managed to complete the run under clear skies, supported by the cheers of the WaterAid Japan staff along the course. This challenge also served as a great opportunity to get my body back in shape after becoming less active during the pandemic. More than anything, being able to boldly run through roads like Yasukuni Street and Sotobori Street—normally packed with cars—was a truly special experience. It offered a new way to enjoy Tokyo, showcasing its charm from a perspective you can’t get from the sidewalk. I’m planning to train properly this year and take on the challenge again. Would you like to join me?
Run the Tokyo Legacy Half Marathon 2025 and deliver clean water for all with us.
Your gift will help us provide water, sanitation and hygiene to the communities and bring about life-long changes.
*Charity Runner application has closed on May 14, 2025 as we've reached maximum entrants.
Donation application period | 11:00am JST Friday 25 April, 2025 - 5:00pm JST Monday 19 May, 2025

Contact
Have a question about the Tokyo Legacy Half Marathon 2025 or need any help applying? Contact us and we’ll be happy to help.
Email: [email protected]
Contact from
Tel: +81 3-6240-2772(Mon-Fri. 10:00AM~6:00PM JST)