For The RepsBlog

Races

Mt. Fuji 100

A trail race in Yamanashi and Shizuoka, Japan.

Headlamps on mountain switchbacks during a night trail race
Headlamps on mountain switchbacks during a night trail race. AI-generated image.
Type
Trail race
Where
Yamanashi and Shizuoka, Japan
Level
Experienced ultrarunners

Race dates

The date for the next edition is not published yet.

Dates change, so check the official site before you enter or book travel. Last checked June 3, 2026.

About the race

Best for experienced ultrarunners.

Training for it

Trail races reward time on your feet and climbing more than road speed. Train on terrain like the course.

  • Build your long runs by time rather than distance.
  • Practise hiking the steep climbs and running the descents.
  • Check the mandatory kit list early and train with that kit on.