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
32.5081° N, 130.6020° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

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. Room to walk the climbs and stop at aid. Among the most forgiving 50K cut-offs we track. Measured against 1058 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.

Results history

Year Race Finishers Men's winner Women's winner
2025 50km 184 Seita Handa · 06:37:21 Mayumi Sakai · 08:12:38
2024 50km 142 Seita Handa · 06:43:10 Arika Ito · 08:31:53
2023 64km 72 Seita Handa · 09:17:42 Yuki Hashimoto · 11:45:40
2022 68.4km 60 Koji Beppu · 09:48:21 Michiko Kuma · 12:36:37

The field grew 30% between 2024 (142) and 2025 (184). 18% 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 vertical 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 4,160 m of ascent.

All gear guides →

Overview

Held in Yatsushiro, Kumamoto Pref., Japan, the Yacchiro Dragon Trail packs 4160 meters of climbing into a 50-kilometer course. That works out to 83.2 meters of ascent per kilometer, demanding sustained mountain climbing over steep terrain from the outset.

To accommodate that severe gradient, the race provides a 15-hour time limit—translating to a cut-off pace of 18 minutes per kilometer. This threshold is more generous than 92% of 50k events and tighter than only 8%, ensuring that runners who can keep moving forward on the relentless grades have ample room on the clock.

Having concluded its 2025 edition with 184 finishers across 4 editions since its 2022 debut, the race draws a starting line bigger than 89% of 50k fields and smaller than 11%.

Similar races

Other 50K trail ultras, closest in distance first.