OSJ ONTAKE100
OSJ ONTAKE100
霊峰・御嶽山の麓を巡る、100kmの山岳路
— 100km through the sacred slopes of Mt. Ontake
御嶽山
Ontake-san
01
Overview
Distance
163km
Time Limit
24hrs
Capacity
200
Entry Fee
¥21,000
ウルトラマラソンアップダウン多い景色が良い歴史ある大会火山
A night-start long race through special-access national forest at the foot of Mt. Ontake (3,067m). Two distances: 100K and 100 Miles. Run through deep forest with majestic views of Mt. Ontake. Part of OSJ's premier long-race series, renowned for an exceptional finish experience.
02
Course
| Category | Distance | Time limit | Start | Entry fee |
|---|---|---|---|---|
| Ultra Marathon | 163km | 24:00 | 20:00 | ¥21,000 |
| Ultra Marathon | 109km | 20:00 | 00:00 | ¥19,000 |
⚠️ 100 Mile: Jul 18 (Sat) 20:00 start. 100K: Jul 19 (Sun) 00:00 start.
03
Registration
Period
February 1, 2026 — June 14, 2026
Check-in
Day-before
General entry: Nov 14 – Dec 12, 2025 (closed). Additional entry: Feb 1 – Jun 14, 2026 (if spots available).