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

Fixed Distance 50K

Koshu Alps Haute Route Challenge Lily Route

21 days to go
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. Room to walk the climbs and stop at aid. More forgiving than 80% of 50K races. Measured against 1058 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.

Results history

Year Race Finishers Men's winner Women's winner
2025 53km 90 Masataka Ohata · 07:29:31 Anna Nagano · 08:02:06

11% of the 2025 field were women.

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.

Course notes

  • terrain This is a mountain course. Poles are highly recommended for the sustained climbs.
  • gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.

Gear for this race

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

All gear guides →

Overview

Set in Koshu, Yamanashi Pref., Japan, the Koshu Alps Haute Route Challenge Lily Route covers 55 kilometres with 3009 metres of climbing on 2026-11-08. Packing 54.7 metres of ascent into every kilometre, the course demands relentless mountain climbing from start to finish.

A 14-hour time limit creates a generous buffer across that terrain, requiring an average pace of only 15.3 minutes per kilometre. The cut-off is more generous than 80% of 50k peers and tighter than only 20%, offering runners breathing room to manage the sustained vertical without an immediate threat of missing checkpoints.

With 90 finishers in 2025, the starting pack ranks bigger than 76% of 50k fields and smaller than 24%—large enough to share the trail without the congestion found in the sport's biggest mass-start ultras.

Similar races

Other 50K trail ultras, closest in distance first.