志賀高原100 takes place on Sat, Aug 29, 2026 in Yamanouchi, Japan. The main route is 100 km.
- Date
- Sat, Aug 29, 2026
- Start
- Yamanouchi 🇯🇵
- Distance
- 100 km
- Climbing
- 4,700 m
- Level
- Open to all
Japan's Shiga Kogen 100 is a trail running race held across the UNESCO Eco Park and national park landscapes of Shiga Kogen, offering a 100km course with approximately 4,700 meters of elevation gain.
Official event pageWhat this race demands
The Shiga Kogen 100 demands sustained endurance and climbing strength to cover 100 kilometers and 4,700 meters of elevation change across mountainous national park terrain.
Ultra-Distance Endurance
Covering 100 kilometers requires immense muscular durability and cardiovascular stamina to sustain forward motion for many hours over demanding terrain.
Climbing Capacity
Accumulating 4,700 meters of elevation gain across the course demands significant uphill running and hiking efficiency to manage steep and sustained inclines.
Late-Summer Heat Management
An August race date in a Japanese mountain environment requires careful thermal regulation and consistent hydration to prevent heat-related performance decline.
Given the extended duration of a 100-kilometer mountain race, athletes should consume 60 to 90 grams of carbohydrates per hour to maintain energy availability.
Estimated finish times
Estimates by level, not promises. Your own number depends on your fitness on the day.
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