Hamakurosaki, Toyama Pref., Japan · Saturday, August 22, 2026
Fixed Distance 50 mi
Mt. Tateyama Climbathon
Race completed
65 km Distance
3,000 m Climbing
7.8 Grit · Hardcore
What the course asks
Climbing rate 46 m / km
Mountain. Significant climbing. Steep sections will require power hiking.
Time limit 11 hours
10:09 min/km average. Generous. Walkable throughout for most of the field. Tighter than 71% of 50 mi races. Measured against 445 races of the same distance. Cut-off calculator →
Field size ~130 Mid-sized. Company early, well spread out by halfway.
DUV results for the 2025 edition (65km) — 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 28°C
Night low 24°C
Rainfall Showers likely
Daylight 13 h 22 m of light
Regional 2001-2020 average for August — NASA POWER, grid elevation 158 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a mountain 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 65 km of trail with 3,000 m of ascent.
- Trail Running Shoes 46 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition 65 km of self-supported fuelling between aid stations.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 3,000 m of ascent to walk up.
- GPS Watches Battery life first — a 65 km day outlasts most full-GPS modes.
Similar races
Other 50 mi trail ultras, closest in distance first.