Race certified by Finishers: event approved by the organizer

Nikotama Ecomarathon 2027

Photo credits: Picture of Setagaya

The event in a few words

Get ready for the Nikotama Ecomarathon, a sporting experience in January 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 🤗.

With several other sporting events organized, particularly in the prefectures of SaitamaOsakaHiroshimaKyoto and Kumamoto (but mainly in Tokyo 🌸), the Ecomarathon positions itself as an environmentally conscious 🌳 and committed organization 🎗️. This year, it is possible to donate to the international refugee support association : Second Harvest Japan. The first food bank in Japan, the organization is committed to ensuring everyone has access to food 🍲. The associations Refugee Empowerment International and Peace Run also benefit from the proceeds of this event. A great way to do something good for others, the planet, and yourself! 🫶

Located about twenty minutes from the city of Shibuya, Nikotama is known for combining modernity and greenery 🌱. You will easily find a park or a quiet picnic area to enjoy time with your family! 🥰 To learn more about the city and Japanese culture, the Tamagawa-daishi temple will open its doors: over a hundred Buddha statues rest in its underground 🗿. If you are passing by for the day, Tokyocapital of the country, is just 30 minutes away. Whether you're interested in traditional culture, fashion, cuisine 🥢 or simply the vibrancy of urban life, you'll be kept busy! 😉

Don't miss this opportunity to combine sport, nature, and cultural discovery in a stunning region of Japan ! 🎐 Register now and get ready for an unforgettable experience at the Nikotama Ecomarathon 🎏.

4 reasons to join this race

Discover Japan 🇯🇵
If you have never been to Japan, running the Nikotama Ecomarathon is the perfect opportunity to explore this country that harmoniously combines tradition and modernity. If you decide to extend your stay, we invite you to explore the Setagaya prefecture. Between the Tamagawa Daishi temple 🏯 and the city's large park, you won't be bored 😅.
Taste Japanese specialties 🍱
Here are some specialties you will surely see if you pass by street stalls 🎏. Ningyoyaki is one of the three main desserts of Setagaya prefecture. Tea is a must in the region, and if you're lucky, you may have the honor of witnessing the famous tea ceremony 🍵.
Immerse yourself in Japanese culture 🫰
Like most regions in Japan, the Setagaya prefecture is heavily featured in manga and anime 🖥️. It is also very active in the world of sports: Setagaya is known for its Olympic park founded for the 1964 Summer Olympics 💪.
An easy, flat, and fast course ⚡️
You might be surprised by the ease and speed of the 10 km course. It is perfect for beginners and those hoping to set records 🏆. If you hope to spend a Sunday with the family, a parent-child race is organized for children under 15 🧑‍🧑‍🧒‍🧒.

A distance for every taste

Half Marathon

Road RunningThe most popular

Frequently asked questions (FAQ)

The races will start at 11:00 AM on January 18, 2026, a 3-minute walk from Futako Shinchi Station
Seta Picnic Square.

Bib pickup will take place on-site on the day of the race from 9:00 AM to 10:30 AM.

You will find a luggage storage area on site (but no cloakroom, you are fully responsible for your valuables). Remember to bring a 45L garbage bag to protect your belongings in case of rain.

  • Half-marathon: the time limit is 3 hours

  • 10 km: the time limit is 1 hour and 30 minutes

If you have any other questions, you can contact the organizers at the following email address: ecomarathon@runningtokyo.com

You can check the race rules here