Held along the Ishikawa riverbed area near Kawanishi / Showa Bridge in Tondabayashi, the event is a community-focused, eco-minded road race that welcomes families and club runners alike. Courses are flat, spectator-friendly loop(s) on paved river trails and bike paths, making the 10K and 5K accessible for beginners while still offering a fun challenge for faster runners. Logistics typically include on-site packet pickup, chip timing, age-group awards, and clear directions from nearby Kintetsu Nagano Line access points (about 1 km east of Kawanishi Station). The race is listed on the Japan Ecomarathon calendar and in international race directories as the September Tondabayashi entry for 2025.
Race
The Tondabayashi Ecomarathon 10K, organized by Japan Ecomarathon / Running in Tokyo, takes place on Sunday, 21 September 2025 in Tondabayashi (Osaka Prefecture) with a start/finish area at the Tondabayashi Ishikawa Nishi Itamochi ground near Kawanishi Ōhashi Bridge—offering a flat, fast riverside bike-path course ideal for beginners and PR seekers.
Weather based on historical averages.
FAQs
What is the Tondabayashi Ecomarathon September 10k?
How long is the Tondabayashi Ecomarathon September 10k?
Where does the Tondabayashi Ecomarathon September 10k take place?
What is the elevation gain of the Tondabayashi Ecomarathon September 10k?
How can I prepare for the Tondabayashi Ecomarathon September 10k?
How do I choose the right training plan for the Tondabayashi Ecomarathon September 10k?
The Tondabayashi Ecomarathon 10K, organized by Japan Ecomarathon / Running in Tokyo, takes place on Sunday, 21 September 2025 in Tondabayashi (Osaka Prefecture) with a start/finish area at the Tondabayashi Ishikawa Nishi Itamochi ground near Kawanishi Ōhashi Bridge—offering a flat, fast riverside bike-path course ideal for beginners and PR seekers.
The Tondabayashi Ecomarathon September 10k is 10km long.
The Tondabayashi Ecomarathon September 10k takes place in Osaka, Japan.
Runna classifies the Tondabayashi Ecomarathon September 10k elevation profile as Flat.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Tondabayashi Ecomarathon September 10k?
The Tondabayashi Ecomarathon 10K, organized by Japan Ecomarathon / Running in Tokyo, takes place on Sunday, 21 September 2025 in Tondabayashi (Osaka Prefecture) with a start/finish area at the Tondabayashi Ishikawa Nishi Itamochi ground near Kawanishi Ōhashi Bridge—offering a flat, fast riverside bike-path course ideal for beginners and PR seekers.
How long is the Tondabayashi Ecomarathon September 10k?
The Tondabayashi Ecomarathon September 10k is 10km long.
Where does the Tondabayashi Ecomarathon September 10k take place?
The Tondabayashi Ecomarathon September 10k takes place in Osaka, Japan.
What is the elevation gain of the Tondabayashi Ecomarathon September 10k?
Runna classifies the Tondabayashi Ecomarathon September 10k elevation profile as Flat.
How can I prepare for the Tondabayashi Ecomarathon September 10k?
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Tondabayashi Ecomarathon September 10k?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Tondabayashi Ecomarathon September 2025 or Japan Ecomarathon. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Tondabayashi Ecomarathon September 2025 website.
