Join Team WaterAid for the Tokyo Marathon 2026 Charity!
WaterAid Japan is an official charity of the Tokyo Marathon 2026 Charity.
We are calling for runners to join us the Tokyo Marathon 2026 Charity, on Sunday 1 March 2026, and deliver clean water for everyone, everywhere.
Application Period: Tuesday 24 June 11:00AM (JST) - Wednesday 9 July 5:00PM (JST).
* Scroll down and select “WaterAid Japan”. Start your application by clicking "apply for donation".
* Deadline for Donation ONLY application: Tuesday 29 August 5:00PM JST
Your support will contribute our work, primarily in Madagascar. In Madagascar, two-thirds of the population still lacks access to safe water, and many of them live without toilets in their homes. In order to tackle the global WASH challenges, it is essential to raise awareness among Japanese audience, by doing advocacy and communication works, where your donation will be also used.
Application Period: Tuesday 24 June 11:00AM (JST) - Wednesday 9 July 5:00PM (JST).
* Scroll down and select “WaterAid Japan”. Start your application by clicking "apply for donation".
* Deadline for Donation ONLY application: Tuesday 29 August 5:00PM JST

How to participate
There are two ways of participation. You can join the Tokyo Marathon 2026 Charity by making a donation and joining as a charity runner, or participating by donation only. Procedures and schedules differ depending on how you participate.
1. Join as a Charity Runner
A "Charity Runner" is a runner who makes a donation him/her/themself over a certain amount to the designated charity organization and participates in the Tokyo Marathon to spread the greatness of charity activities.
Participation procedure
1. Donation application
<11:00 am JST, Tue., 24 June - 5:00pm JST, Wed., 9 July>
Visit the application page on the Tokyo Marathon Foundation RUN with HEART website and select WaterAid Japan to proceed for application. Make sure to choose you wish to run as a charity runner when applying.
2. Charity runner selection
<Tue. 15 July - Fri. 18 July>
WaterAid selects runners and email from the Tokyo Marathon 2026 Charity Desk will be sent to those who are selected.
3. Donation payment and runner entry
<Tue. 15 July - 5:00pm JST, Thu. 14 August>
・Please make your donation according to the instructions in 2.
・Upon the confirmation of the donation, the Tokyo Marathon 2026 Charity Desk will send you an e-mail regarding runner entry. Please follow the instructions in the e-mail to complete the procedures for runner entry and payment of the entry fee.
4. Runner participation completed
You can check the status of your donation application in “My Charity”. If the donation status is “5. Runner Confirmed”, all procedures have been completed.
WaterAid Japan Charity Runner Application Info
Maximum entrants 104
Donation amount 100,000 yen or more / person
Participation fee
In addition to your donation, the Tokyo Marathon 2026 Event fee will be charged. For more details, please visit the Tokyo Marathon 2026 Official Website.
Criteria
1)Donations per person is 100,000 yen or more
2)Previous WaterAid charity runners or supporter priority slots (max.10 slots)
3)Selected by higher donation amount --> If the donation application amount is the same, selected based on the contents of the "Thoughts on Charity & Messages."
Why you should join our team?
We will support you to make some wonderful memories at the Tokyo Marathon 2026. We are currently planning to offer followings to our charity runners.
● WaterAid running top
● Invitations to the pre-race events and get-together
● Invitation to our running group to communicate with us and your fellow runners
● Team WaterAid cheering/support along the race
● Post-race WaterAid lounge for runners and family/friends
WaterAid lounge for charity runners at the Tokyo Marathon 2025 Charity
Race information
Race name: Tokyo Marathon 2026
Date: Sunday, March 1, 2026
>>Visit Website
Application Period: Tuesday 24 June 11:00AM (JST) - Wednesday 9 July 5:00PM (JST).
* Scroll down and select “WaterAid Japan”. Start your application by clicking "apply for donation".
* Deadline for Donation ONLY application: Tuesday 29 August 5:00PM JST
2. Join only by donation
Even if you are not willing to join as a Charity Runner and run the race, you can still join to support our work by making a donation.
Application period
11:00am JST Tue. 24 June, 2025 - 5:00pm JST Fri. 29 August, 2025
How to apply
1. Select "WaterAid Japan" on the Official Website of the Tokyo Marathon Foundation Charity RUN with HEART and apply.
2. Make a donation by following the instructions in the email sent to your email address.
Donation amount 1,000 yen or more
What your donation could do
WaterAid/ Ernest Randriarimalala
Ernest Randriarimalala
200,000 yen
80 household toilets can be installed in Madagascar
WaterAid/ Basile Ouedraogo
WaterAid/ Basile Ouedraogo
250,000 yen
100 people will have access to clean water
WaterAid/ Ernest Randriarimalala
WaterAid/ Ernest Randriarimalala
400,000 yen
Create communication kits for local media in Madagascar to improve water and sanitation management
About WaterAid
WaterAid is an international not-for-profit organisation, determined to make clean water, decent toilets and good hygiene normal for everyone, everywhere.
Since 1981, WaterAid has delivered clean water to 281 million people and decent toilets to 288 million people. Together, we install clean water systems such as taps, toilets, boreholes and wells. We train local people to manage and maintain taps and toilets, using local, low-cost parts. Keeping the water flowing long into the future.
Run the Tokyo Marathon 2026 and deliver clean water for everyone, everywehre.
Your gift will help us provide water, sanitation and hygiene to the communities and bring about life-long changes for many.
Application Period: Tuesday 24 June 11:00AM (JST) - Wednesday 9 July 5:00PM (JST).
* Scroll down and select “WaterAid Japan”. Start your application by clicking "apply for donation".
* Deadline for Donation ONLY application: Tuesday 29 August 5:00PM JST

Contact us
Have a question about the Tokyo Marathon 2026 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. 10:00~18:00)