Ultra Running Hub Hamakurosaki, Toyama Pref., Japan · Saturday, August 22, 2026
Mt. Tateyama Climbathon
What the course asks
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
Regional 2001-2020 average for August — NASA POWER, grid elevation 158 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 65km | 130 | Yusuke Nakasai · 06:25:53 | Rumi Shimizu · 09:19:14 |
| 2024 | 65km | 206 | Yusuke Nakasai · 05:06:54 | Mari Fujimoto · 06:49:55 |
| 2023 | 65km | 135 | Yusuke Nakasai · 06:36:44 | Saori Honda · 09:26:23 |
| 2022 | 65km | 2 | Yusuke Nakasai · 06:18:42 | — |
| 2020 | 65km | 41 | Yusuke Nakasai · 06:40:30 | Saori Honda · 09:03:45 |
| 2018 | 65km | 166 | Yusuke Nakasai · 06:07:57 | Saori Honda · 07:49:35 |
| 2017 | 65km | 176 | Taishi Shibata · 06:57:00 | Saori Honda · 09:06:00 |
| 2016 | 60km | 133 | Yasuhiro Tamaki · 06:31:00 | Kazuko Hirota · 07:37:00 |
| 2015 | 60km | 145 | Hiroyuki Takase · 05:55:00 | Mariko Ozawa · 07:06:00 |
The field shrank 37% between 2024 (206) and 2025 (130). 11% of the 2025 field were women.
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.
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 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.
Overview
Held in Hamakurosaki, Toyama Pref., Japan, the Mt. Tateyama Climbathon was a 65 km mountain ultra packing 3000 meters of elevation gain—averaging 46.2 meters of ascent per kilometer across the route.
The race demanded steady climbing against an 11-hour time limit. With a required pace of 10.2 minutes per kilometer, the cut-off was tighter than 71% of 50mi events and more generous than 29%, leaving runners with little margin for sustained slowdowns on steep ascents.
At its 2025 edition, 130 runners crossed the finish line. Across 9 editions since 2015, the race drew a competitive crowd, featuring a field bigger than 79% of peer events in the 50mi distance category and smaller than 20%. Entry cost 28000 Yen.
Similar races
Other 50 mi trail ultras, closest in distance first.