Enjoy mountain hiking set on the Koshu Alps. This race's appeal lies in racing through dense, unspoiled nature. Along the ridgeline, if the weather's clear, you can traverse with Mt. Fuji in view the whole way. As you descend in elevation, you can savor singletrack trails running through old-growth beech and Mongolian oak forests. Fun for juniors through seniors alike.
Entry fees: Crecha 108 ¥30,000, Haute Route Challenge ¥20,000 (support runner ¥10,000), Rilly Route Challenge ¥16,000 (high school/support runner ¥8,000), Maronnier Route Challenge ¥12,000 (junior-senior high/support runner ¥6,000), Trail Quest ¥2,000 (elementary/junior/senior high ¥1,000)
Races Offered
Crecha 108 (Haute + Maronnier) approx. 108km
Nov 08, 2026
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Distance —
108K
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42 days remaining
Haute Route Challenge approx. 70km
Nov 08, 2026
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Distance —
70K
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42 days remaining
Maronnier Route Challenge approx. 36km
Nov 08, 2026
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Distance —
36K
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42 days remaining
Rilly Route Challenge approx. 55km
Nov 08, 2026
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Distance —
55K
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42 days remaining
Trail Quest 1.5km Course
Nov 08, 2026
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Distance —
1.5K
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42 days remaining
Trail Quest 3.0km Course
Nov 08, 2026
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Distance —
3K
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42 days remaining
Trail Quest 3.0km Course (General/High School)
Nov 08, 2026
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Distance —
3K
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42 days remaining
Trail Quest 3.0km Course (Junior High)
Nov 08, 2026
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Distance —
3K
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42 days remaining
Weather History
These values represent the 3-year monthly averages for November in Koshu.
thermostatTemperature
5.8° / 16.4°
wb_sunnyFeels like
3.0° / 14.3°
light_mode
Avg sunshine hours
8h 13m
water_drop
Avg rainfall
2.5 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
6.3 km/h (Light breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Low (2.0)
humidity_mid
Humidity
67.3%
wb_twilight
Sunrise
06:21
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Sunset
16:39
Hotels & Places to Stay
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