上州武尊山スカイビュートレイルラン takes place on Sat, Sep 12, 2026 in 川場村, Japan. The main route is 138 km.
- Date
- Sat, Sep 12, 2026
- Start
- 川場村 🇯🇵
- Distance
- 138 km
- Climbing
- 8,017 m
上州武尊山スカイビュートレイルは、日本百名山の武尊山周辺の2000m級の高山域を舞台に、稜線や森林限界を越えていく本格的なハイマウンテンレースです。
Official event pageWhat this race demands
This 138 km trail running race demands exceptional endurance and resilience to overcome over 8,000 meters of elevation gain in high-altitude mountain terrain.
Massive climbing volume
Accumulating over 8,000 meters of elevation gain across a 138 km distance requires sustained climbing strength and efficient movement on steep ascents and descents.
High-altitude durability
Operating in 2,000-meter alpine environments for an extended duration demands strong cardiovascular capacity and thermal regulation.
Ultra-distance pacing
Completing 138 km necessitates strict energy management and consistent nutritional intake to sustain forward motion over many hours.
Given the exceptionally long duration of this event, athletes should target an intake of 60 to 90 grams of carbohydrates per hour to maintain energy output.
Estimated finish times
Estimates by level, not promises. Your own number depends on your fitness on the day.
Your road to race day
Race day at 上州武尊山スカイビュートレイルラン is 3 weeks away. This is how a coach divides that time. The first phase starts now.
01Taper2 weeks · Aug 23, 2026 – Sep 5, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
02Race week1 week · Sep 6, 2026 – Sep 12, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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