Yamathon 2025 - Full 2026

The Tokyo Yamathon Full begins and ends in Chiyoda City. Teams start at 08:00 and have until 21:00 to finish. This is the longest option in the Yamathon series, longer than the Half and Half-a-Half categories. The Full course is for teams seeking the greatest challenge. The event focuses on teams, not individual runners. The Full course attracts the most participants: 682 Full teams out of 1,008 total teams across all categories. Despite heavy rain, participation numbers were strong, with runners completing the course throughout a long, wet day.