第12回 豊洲のうみべマラソン 2026

The Toyosu Seaside Marathon takes place in a park extending into Tokyo Bay, surrounded by water on most sides. It is part of Japan's autumn running calendar, and this 12th running emphasizes a straightforward, flat course along the bay, avoiding a hilly route. The course follows park paths without significant elevation changes, making it suitable for less experienced runners and those aiming for a consistent pace. Post-race, participants are near Toyosu's shopping and entertainment venues, allowing for an easy extension of the day by the waterfront.