Ultra Running Hub Minami aso, Japan · Saturday, July 4, 2026
Fixed Distance 50K
Minami-aso caldera Trail Summer
Race completed
50 km Distance
2,491 m Climbing
6.2 Grit · Hardcore
What the course asks
Climbing rate 50 m / km
Mountain. Significant climbing. Steep sections will require power hiking.
Field size ~122 Mid-sized. Company early, well spread out by halfway.
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, July
Daytime high 28°C
Night low 20°C
Rainfall Wet — expect rain
Daylight 14 h 16 m of light
Regional 2001-2020 average for July — NASA POWER, grid elevation 616 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 50km | 122 | Yuta Nakashima · 06:23:05 | Arika Ito · 07:03:32 |
| 2024 | 50km | 97 | Jun Urushigami · 06:14:30 | Nozomi Hatakeyama · 07:33:06 |
The field grew 26% between 2024 (97) and 2025 (122). 13% 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 2,491 m of ascent.
- Trail Running Shoes 50 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 2,491 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.