Uonuma Skyrun Expert 25K 2026
Also known as: UONUMA SKYRUN · Uonuma Alps Skyrace
A 25 km, ±2,200 m skyrace from Hibiki no Mori Park in Uonuma, Niigata, linking the Uonuma Alps ridgeline over Dairiki-yama, Kurohage no Kashira, Kasakura-yama, Koma no Kashira, Kuwabara-yama and Narukura-yama. Born in 2021 out of the Uonuma Junior Chamber, it hosts the Japan Skyrunning Association (JSA) national SKY championship. Organised by the Uonuma Skyrun executive committee.
The course tops out at 887 m (low point 124 m). There are 2 big climbs: 629 m around 0–7 km; 430 m around 15–18 km. The longest descent drops 666 m around 10 km at about 14% on average. Only about 30% is gentle (under 5% grade); most of it is climbing or descending.
Estimate your finish from your ITRA index
Estimate (no finisher data for this race)
Enter your ITRA performance index to get an estimated finish time, aid-station splits and cutoff margins. This race has no finisher ITRA data, so it uses the transfer model: your predictions for the 287 races that do have finisher data, scaled by distance and elevation gain (km-effort) — the same calculation as the TRAIL STATUS app. Nothing is saved or sent.
The app adds predictions from your training log (Strava), race-day pacing and more. Free, no sign-up.
Predict in detail from my Strava trainingOverview
- Date
- Sun, 1 Nov 2026
- Start
- 08:30
- Location
- Niigata, Japan
- Distance
- 25 km
- Elevation gain
- 2,200 m
- Time limit
- 6h 30m
- ITRA
- H
- Official website
- uonumaskyrun.com/about
Elevation profile
Aid stations and cutoffs
| # | Distance | Aid station | Segment | Cutoff |
|---|---|---|---|---|
| F | 25 km | FinishFINISH（響きの森公園） | 25 km | 15:006h 30m |
The small figure under each cutoff is the time from the start.
Registration
- Registration
- Tue, 9 Jun 2026 – Sun, 11 Oct 2026
- Entry
- First come, first served
Add the race in the app to put registration opening and closing and the lottery results into your calendar.
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From your training log, TRAIL STATUS estimates your finish time, aid-station splits and cutoff margins for this race.
Predict my raceCompiled from each race's official information. Details can change, so always check the race's official website for the latest. Spotted a mistake? Please tell us through the contact form.
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