Uonuma Skyrun Expert 25K 2027
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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.
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How the prediction works
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 297 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 automatically 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, 7 Nov 2027
- Start
- 08:30
- Location
- Niigata, Japan
- Distance
- 25 km
- Elevation gain
- 2,200 m
- Time limit
- 6h 30m
- ITRA
- H
- Official website
- uonumaskyrun.com
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.
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- DEEP JAPAN SUMON 30km 2027Fri, 25 Jun 2027 · Niigata, Japan · 30 km
- DEEP JAPAN UONUMA 80km 2027Fri, 25 Jun 2027 · Niigata, Japan · 80 km
- N3PUC HARD NOW 90mile (three peaks, three round trips) 2026Sat, 18 Apr 2026 · Niigata, Japan · 144 km
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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Points to consider for this course
- The overall time limit allows about 15:36/km including stops. This average does not guarantee meeting intermediate cutoffs.
- No intermediate points are recorded, so the longest gap is not calculated. Check the official aid list for fueling intervals.
- Read the recorded profile alongside the cutoffs. Terrain, weather and your condition can change travel time.
These are simple calculations and observations from recorded information, not personal finish probabilities or difficulty ratings.
Other editions of the same race and distance
Recorded editions match by name, official domain, format and distance range. Results and courses across editions may not be directly comparable. Check the organizer for the latest schedule.
- Uonuma Skyrun Expert 25K 2026 · 2026-11-01Compared recorded values match.
Results and official information
Historical field finish rates differ from your personal prediction. This is not a live results service; check official announcements for results and changes.
Check rules and results on the official siteInformation checked: 2026-10-26