21st Shonan International Marathon (第21回湘南国際マラソン)

The Shonan International Marathon is more than just a race; it's an ecological initiative aimed at fostering community spirit and environmental consciousness. Known as the "My Bottle Marathon," this unique event has pioneered zero waste on its course, eliminating disposable cups and bottles entirely—a world-first achievement in marathon sustainability.
Participants are encouraged to bring their own reusable water containers for hydration stations along the route, ensuring that the race remains clean and eco-friendly from start to finish. With over 95% of runners supporting this initiative, the Shonan International Marathon sets a new standard for environmental responsibility within the running community.
The full marathon course winds through picturesque landscapes in the heart of Shonan, offering participants scenic views and an enjoyable experience that goes beyond athletic competition. Whether you're tackling the challenging 42 kilometers or joining one of the shorter fun runs designed for all ages—10km races for adults and high school students, a kid-friendly 2km run, or even a family-oriented event—the Shonan International Marathon has something to offer everyone.
Registration fees vary depending on the distance you choose. For those competing in the full marathon, it costs ¥16,500 (approximately $137 USD). The shorter fun runs are more affordable: ¥8,500 for adults and high school students running 10km; ¥5,500 for high school participants; ¥2,000 for the family-friendly 2km run; and a mere ¥1,000 for both the 1.4km walk-run event and those opting into the training program.
This December 6th edition of the Shonan International Marathon invites runners to embrace an environmentally conscious approach while enjoying the beauty of Shonan's countryside. Join us in making a difference one step at a time.