We Are Publishing the Themes Collected from Tokyo Residents!

Thank you for sharing the themes you'd like to see tackled at the hackathon. We have selected themes based on your responses.

Please note that submissions falling under the following categories have been excluded.
Results have also been organized and processed before publication.
1. Content that identifies a specific individual or organization
2. Content that infringes on the property or privacy of a specific individual or organization
3. Content that infringes on the copyright of a specific individual or organization
4. Content involving opinions that violate laws, acts contrary to public order and morals, or that are linked to criminal activity
5. Content intended for commercial or profit-making purposes
6. Any other content deemed inconsistent with the purpose of this survey

Key Points for 2026

Here are three highlights for this year. Let's create services that connect to society.

Themes Collected from Tokyo Residents

This year, hackathon themes will be collected from Tokyo residents. This allows participants to tackle challenges starting from the voices of the residents themselves.

Revamped Awards — Now 8 Awards Total

In addition to the Governor's Cup (Grand Prize), the awards have been revamped to a total of 8 prizes, including an Audience Award. There are more opportunities to win from a variety of angles.

Development Support Tools Provided

Generative AI tools and service deployment environments will be provided free of charge to participants who apply. Supporting the challenges of participants from all backgrounds.

Schedule

2026.06.12

Entry Applications for 2026 Open

2026.06.12

2026.07.26

Online Content Released

2026.07.10

2026.07.15

Recruitment Events (2 sessions)

2026.07.10

2026.07.15

2026.07.10

2026.08.23

Work Submission Period

2026.07.27

Entry Application Deadline

2026.08.06

Kick-off Event

Details TBA

2026.08.07

2026.08.19

Kick-off Week

2026.08.07

2026.08.08

2026.08.09

2026.08.19

2026.08.22

2026.08.23

Hackathon

2 days

2026.08.26

2026.08.31

First Stage Recording

2026.08.26

2026.08.27

2026.08.28

2026.08.29

2026.08.30

2026.08.31

any 30-minute slot

Late September 2026

First Stage Results Announced

2026.10.17

Final Stage

13:00〜18:00

2027.03.27

Demo Day

Details TBA

Judging Panel

Masahiro Ihara

GovTech Tokyo, Executive Director and CTO

Takako Kansai

Kufu Company, CSO

Katsumi Takano

Director General, Bureau of Digital Services, Tokyo Metropolitan Government

Kenya Tamura

Eukarya Inc. CEO

Mariko Nishimura

HEART CATCH Inc. CEO / Producer

Manabu Miyasaka

Vice Governor of Tokyo Metropolitan Government

* Listed in Japanese alphabetical order.

2026 Work Collection

ハッカソンキャッチ

We are showcasing entries from the 2026 edition, including proposals that utilize open data to address administrative challenges presented by the Tokyo Metropolitan Government.

FAQ

I'm not sure if I can participate in all scheduled dates due to work or household duties. Is that okay?

Participation in all scheduled dates is optional. For the hackathon, online participation is available in addition to attending in person at the venue. If online participation is also difficult, you may simply submit your work and present at the First Stage.

What specific works are required to be submitted?

You will need to prepare slide materials for your presentation at the First Stage (recorded session). You are also required to record a presentation of the prototypes and other deliverables developed during the hackathon period.

Is it essential to use open data?

As stated in "3. Application Requirements" of the application guidelines, it is required to "plan to use open data or private sector data." The use of private sector data is also highly encouraged, so please make use of various data sources and actively participate in this event.

Are there any benefits for participants?

Upon registration and application, participants will receive a Cloudflare Paid plan equivalent (service deployment environment) and OpenCode (with LLM set) as a generative AI development tool, provided through the end of September. Finalists advancing to the Final Stage will also receive an open badge and Tokyo Points 500pt.

op_badge

Tokyo Metropolitan Government's Open Data Utilization Initiatives

Tokyo Metropolitan Government Open Data Catalog Site

You can search for examples of actual open data use in a list format, and access rankings of open data are also available. You can also submit requests for the open data you need.

Tokyo Metropolitan Open Data Community

To further expand efforts to promote open data use, we are building an open data community to activate communication among users and strengthen connections between users and the metropolitan government.

Use the Hashtag

Please use hashtags to share entry reports, event participation updates, and any questions during the implementation stage.

#Tokyo_ODH

Contact

  • Inquiries about this project and applications:

  • Governor's Cup Open Data Hackathon Management Office (Trustee: Mizuho Bank, Ltd.)

    9_opendata-hackathon.tokyo@mizuho-rt.co.jp

    Links

    東京都デジタルサービス局
    openDataCommunity
    東京オープンデータ
    TokyoTokyo
    htt
    東京都公式アプリ

    Past archive information

    Sponsored by:

    Tokyo city logo

    Copyright © Tokyo Metropolitan Government. All Rights Reserved.

    Governor's Cup Open Data Hackathon 2026 — Top Page (index)