Yatsushiro, Kumamoto Pref., Japan · Saturday, August 29, 2026
Fixed Distance 50K
Yacchiro Dragon Trail
Race completed
50 km Distance
4,160 m Climbing
8.7 Grit · Elite / extreme
What the course asks
Climbing rate 83 m / km
Vertical. Extreme verticality. This is a technical mountain course with sustained steep grades.
Time limit 15 hours
18:00 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 90% of 50K races. Measured against 982 races of the same distance. Cut-off calculator →
Field size ~184 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, August
Daytime high 30°C
Night low 23°C
Rainfall Wet — expect rain
Daylight 12 h 58 m of light
Regional 2001-2020 average for August — NASA POWER, grid elevation 259 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a vertical course. Poles are highly recommended for the sustained climbs.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of trail with 4,160 m of ascent.
- Trail Running Shoes 83 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 4,160 m of ascent to walk up.
- Headlamps A 15 h limit puts you out there after dark.
Similar races
Other 50K trail ultras, closest in distance first.