Ultra Running Hub Happo, Yamamoto District, Akita Pref., Japan · Sunday, September 13, 2026
Fixed Distance 50K
Hakuba Int. Trail Run Duo
Race completed
50 km Distance
2,130 m Climbing
5.7 Grit · Challenging
What the course asks
Climbing rate 43 m / km
Mountain. Significant climbing. Steep sections will require power hiking.
Field size ~38 Small. Long stretches with nobody in sight.
DUV results for the 2025 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, September
Daylight 12 h 32 m of light
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 50km | 38 | Kentaro Kobayashi · 06:15:39 | Chie Ogoshi · 07:45:27 |
| 2024 | 50km | 22 | Daisuke Takeshita · 07:09:46 | Kimiko Nakade · 08:27:43 |
| 2023 | 50km | 20 | Yuuki Aizawa · 06:13:41 | Megumi Hagiwara · 08:16:08 |
The field grew 73% between 2024 (22) and 2025 (38). 37% of the 2025 field were women.
DUV results for the 2025 edition (50km) — 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 50 km of trail with 2,130 m of ascent.
- Trail Running Shoes 43 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition 50 km of self-supported fuelling between aid stations.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 2,130 m of ascent to walk up.
- GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.
Similar races
Other 50K trail ultras, closest in distance first.