エンジョイリレーマラソン2026@荒川【5/16】

Enjoy Relay Marathon 2026 @ Arakawa is a team-focused running event held at Horikiri Mizube Park in Katsushika, Tokyo, beside the Arakawa river. The event is designed around a relay format in which participants pass a sash between teammates, making it approachable for mixed groups such as families, workplace teams, and friends with different running backgrounds. Its short-loop format lets teams decide how to share the running as the event unfolds, so even newer runners can take part without needing the same pace or stamina as more experienced teammates. The source emphasizes a relaxed, inclusive atmosphere rather than a purely competitive race setting. Before the run, a fitness running trainer leads warm-up exercises and gives running guidance so participants can start safely and confidently. The course is described as flat and paved with asphalt, while also remaining open to other park users, so consideration and shared use are part of the event culture. Beyond running, the event includes playful community elements such as a costume runner award and a prize rock-paper-scissors contest. These features make the race suitable for teams that want a social, cheerful day out as much as a timed athletic challenge. Organized by BOOST Co., Ltd., it presents itself as an accessible relay marathon where teamwork, participation, and enjoyment are central to the experience.