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 Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it.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.
All gear guides →

Similar races

Other 100K trail ultras, closest in distance first.