Ultra Running Hub Koshu, Yamanashi Pref., Japan · Sunday, November 8, 2026
Koshu Alps Haute Route Challenge
What the course asks
DUV results for the 2025 edition (68km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, November
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 | 68km | 101 | Koki Seta · 09:08:52 | Shiori Uehara · 11:25:32 |
| 2024 | 68km | 137 | Naoki Hasegawa · 10:17:00 | Anna Nagano · 10:50:33 |
| 2024 | 108km | 9 | Koki Seta · 15:01:40 | Tamami Arai · 16:33:49 |
| 2023 | 68km | 230 | Kazufumi Ose · 09:06:41 | Tomoko Hata · 12:43:12 |
| 2023 | 108km | 12 | Masanori Makino · 14:51:12 | Anna Nagano · 17:17:42 |
| 2022 | 68km | 210 | Taiki Sato · 09:08:23 | Rieko Seki · 11:35:36 |
| 2022 | 101.9km | 34 | Hiroshi Kimura · 12:41:07 | Michiko Uchiyama · 17:54:07 |
| 2021 | 67km | 251 | Ko Ito · 08:32:53 | Kaori Asahara · 11:20:16 |
| 2019 | 67km | 160 | Yoshihito Kondo · 08:30:02 | Yumiko Oishi · 10:37:57 |
| 2018 | 67km | 133 | Nobuya Tani · 08:39:14 | Yukari Hoshino · 10:46:50 |
The field shrank 26% between 2024 (137) and 2025 (101). 19% of the 2025 field were women.
DUV results for the 2025 edition (68km) — 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 68 km of trail with 4,200 m of ascent.
- Trail Running Shoes 62 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition 68 km of self-supported fuelling between aid stations.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 4,200 m of ascent to walk up.
- GPS Watches Battery life first — a 68 km day outlasts most full-GPS modes.
Overview
The Koshu Alps Haute Route Challenge, a 50-mile trail race in Koshu, Yamanashi Pref., Japan, is scheduled for November 8, 2026. This event features 4200 meters of elevation gain over 68 kilometers, averaging 61.8 meters of climb per kilometer. This amount of climbing is significant for the distance.
With a field of 101 finishers in its 2025 edition, the Koshu Alps Haute Route Challenge is bigger than 73% of 50-mile fields and smaller than 26% of them, among 677 peer races. The race has been held 10 times since its first edition in 2018, with the latest edition in 2025.
Similar races
Other 50 mi trail ultras, closest in distance first.