日本一の標高差！NORTH ONTAKE MARATHON 2026

At the foot of sacred Mount Ontake, this ultra features “Japan’s greatest elevation difference.” More than half the course sits above 1,000 meters, in what the organizers term an “extreme high-altitude zone.” This is not a casual mountain jog with a view. Expect sustained effort at high elevation, significant climbing, and legs that must continue cooperating after easier options are exhausted. Ultra runners are the intended participants: individuals who recognize the importance of rest stops, particularly when they offer “local specialty food supplies,” and that finishing may lead to a soak in the local hot springs.