Joetsu City, Niigata Pref., Japan · Sunday, October 11, 2026
Fixed Distance 100K
Echigo Kubikino 100km Ultramarathon
Race completed
100 km Distance
not publishedn/a Climbing
5.0 est Grit · Challenging
Calculated from 100 km alone — the organiser has not published an elevation profile. Read 5.0 as a floor, not a verdict.
What the course asks
Time limit 13 hours
7:48 min/km average. Tight. Sustained running. Long aid-station stops will cost you. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Tighter than 87% of 100K races. Measured against 226 races of the same distance. Cut-off calculator →
Field size ~805 Very large. Congested start, busy aid stations.
DUV results for the 2024 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, October
Daylight 11 h 29 m of light
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2024 | 100km | 805 | Yusuke Kodama · 07:07:44 | Sonoka Nakayama · 08:15:10 |
| 2022 | 100km | 872 | Kiyotaka Imai · 07:29:41 | Sonoka Nakayama · 08:08:08 |
| 2016 | 100km | 1,342 | Tsutomu Nagata · 06:54:37 | Kayo Shibuya · 08:44:14 |
| 2014 | 100km | 1,325 | Tsutomu Nagata · 06:58:30 | Yukako Takashima · 08:23:08 |
| 2012 | 100km | 1,132 | Kouji Kayama · 07:15:34 | Yukako Takashima · 08:43:35 |
| 2010 | 100km | 937 | Hiroyuki Shingu · 07:12:49 | Yuko Koshino · 08:46:15 |
| 2008 | 100km | 753 | Yoshiyuki Saito · 07:24:11 | Tomoko Wachi · 08:59:12 |
| 2006 | 100km | 727 | Tetsuro Tamaya · 07:27:54 | Tomoko Wachi · 08:55:29 |
| 2004 | 100km (Partial) | 30 | Yasutaka Kuramoto · 07:23:55 | Kayo Tanida · 09:36:38 |
The field shrank 8% between 2022 (872) and 2024 (805). 19% of the 2024 field were women.
DUV results for the 2024 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Course notes
- gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.
- nutrition For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.
Gear for this race
Chosen for 100 km of trail.
- Trail Running Shoes 100 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition Past 100 km the palate quits before the legs do — carry more than one flavour.
- Hydration Vests Flask capacity for 100 km, without the bounce.
- Headlamps A 13 h limit puts you out there after dark.
- Accessories Chafe and blisters end more 100 km races than fitness does.
Similar races
Other 100K trail ultras, closest in distance first.