第45回 UP RUN彩湖マラソン 2026

The UP RUN Saiko Marathon takes place at Saiko-Doman Green Park in Toda, Saitama, regardless of weather, with race routes circling Lake Saiko. Held in June, it offers runners a timed 5 km loop course alongside the lake, featuring water views and parkland scenery. The series welcomes all participants, from beginners to seasoned club runners, serving as both a training opportunity and a chance to pursue personal records. This event marks the 45th edition, organized by the UP RUN Executive Committee. Access is available by bus from Musashi-Urawa Station, followed by a short walk from the Saiko-Doman Green Park Entrance bus stop.