4 events in Shinjuku, Tokyo

From big races to Saturday morning group runs—find マラソン (marathon) events and connect with the local endurance sports community.

• April Ecomarathon Nikotama [finishers.com] [Register at finishers.com]
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  Sun, Apr 12, 2026

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  Get ready for the Nikotama Ecomarathon, a sporting experience in April in the heart of the Setagaya prefecture in Japan 🇯🇵. More precisely in the city of Nikotama (also called Futako-Tamagawa), by...

  Get ready for the Nikotama Ecomarathon, a sporting experience in April in the heart of the Setagaya prefecture in Japan 🇯🇵. More precisely in the city of Nikotama (also called Futako-Tamagawa), by the Tama River, in the Tamagawa Futako Bridge Park, where you will start your race at precisely 11:00 AM ! 🕚 You're heading out for two races to choose from: a half-marathon or a 10 km, all in a loop format. If you've come with family 👨‍👩‍👧‍👦, a parent-child race of 5 km is organized. The course also takes the form of a loop 🔂. You can enjoy a track surrounded by lakes, ponds, and beautiful nature 🍃. You'll be immersed in a peaceful and inspiring environment, perfect for breaking your personal record or simply enjoying every stride 💪. Moreover, you'll be running in a small group of 300 people, ideal for making new friends 🤗.

  5k 10k Half Marathon Marathon Run

  Shinjuku, Tokyo, Japan
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• Nikotama Ecomarathon [finishers.com]
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  Sun, Jan 17, 2027

  5k 10k Half Marathon Marathon Run

  Shinjuku, Tokyo, Japan
  OpenStreetMap Google Maps
• 2027 Tokyo Marathon Semper Fi & America's Fund Team [runsignup.com]
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  Sun, Feb 28, 2027 at 9:05 AM

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  2027 Tokyo Marathon - Earn your entry to the 2027 Tokyo Marathon by raising funds and awareness for Semper Fi & America's Fund.

  Semper Fi & America's Fund has a very limited number of entries. Please...

  2027 Tokyo Marathon - Earn your entry to the 2027 Tokyo Marathon by raising funds and awareness for Semper Fi & America's Fund.

  Semper Fi & America's Fund has a very limited number of entries. Please complete our team application by clicking HERE.

  Contact Christine.Ingraham@theFund.org if you are interested in one of our limited entries to the Tokyo Marathon.

  Semper Fi & America’s Fund cares for our nation’s critically wounded, ill, and injured service members, veterans, and military families. Supporting all branches of the U.S. Armed Forces, we provide one-on-one case management, connection, and lifetime support.

  Today. Tomorrow. Together.

  To learn more about Semper Fi & America's Fund please visit thefund.org.

  What are the benefits of joining the Semper Fi & America's Fund Team?

  • Guaranteed registration in the 2027 Tokyo Marathon

  • A dri-fit race shirt and runner's goodie bag!

  • An online fundraising link set up by RunSignUp.com that you can send to your donors.

  • Timely updates from our Race Coordinator.

  • Prizes for the top fundraisers!

  • The heartfelt thanks of the injured Marines, Sailors, Airmen and Soldiers you will be supporting!

  (Please note that this is the registration page for the Semper Fi & America's Fund Charity Team at the 2027 Tokyo Marathon.)

  26.2 Miles Marathon Run

  Straße Des 17 Juni, Shinjuku, Tokyo, 163-8001, Japan
  OpenStreetMap Google Maps