Koshu, Yamanashi Pref., Japan · Sunday, November 8, 2026

Fixed Distance 50K

Koshu Alps Haute Route Challenge Lily Route

66 days away

55 km Distance

3,009 m Climbing

7.3 Grit · Hardcore

35.7044° N, 138.7294° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 55 m / km Mountain. Significant climbing. Steep sections will require power hiking.

Time limit 14 hours 15:16 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 79% of 50K races. Measured against 982 races of the same distance. Cut-off calculator →

Field size ~90 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2025 edition (53km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, November

Daytime high 13°C

Night low 3°C

Rainfall Mostly dry

Daylight 10 h 31 m of light

Regional 2001-2020 average for November — NASA POWER, grid elevation 732 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a mountain course. Poles are highly recommended for the sustained climbs.

By UltraHub Expert

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 55 km of trail with 3,009 m of ascent.

Trail Running Shoes 55 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 55 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 3,009 m of ascent to walk up.
Headlamps A 14 h limit puts you out there after dark.