Madarao Forest Trails 50km 2026
Also known as: Madarao 50K
Starting and finishing at Restaurant Heidi at Madarao Kogen ski area in Iiyama, Nagano, the 50 km course links the summits of Mt. Madarao, Mt. Hakama and Mt. Kenashi with lakes such as Kibo-ko and Akaike, wetlands and beech forest. About 93% of it is trail. Produced by trail runner Hiroki Ishikawa, the event has been held since 2007.
The course tops out at 1,300 m (low point 712 m). There are 2 big climbs: 588 m around 12–20 km; 308 m around 26–30 km. About 40% of the distance is gentle (under 5% grade).
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 205 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, 18 Oct 2026
- Start
- 06:30
- Location
- Nagano, Japan
- Distance
- 50 km
- Elevation gain
- 2,570 m
- Time limit
- 9h
- ITRA
- 50K
- Official website
- madaraoforesttrails.net/overview
Elevation profile
Aid stations and cutoffs
| # | Distance | Aid station | Segment | Cutoff |
|---|---|---|---|---|
| 1 | 18 km | Aid 11A 菅川（ドリンク） | 18 km | — |
| 2 | 23 km | Aid 22A レストランバンフ（第1関門） | 5 km | Day 1 11:004h 30m |
| 3 | 34 km | Aid 33A 赤池 | 11 km | — |
| 4 | 38 km | Aid 4希望湖（第2関門） | 4 km | Day 1 13:307h |
| 5 | 43 km | Aid 54A 希望湖 | 5 km | — |
| F | 50 km | FinishFINISH（レストランハイジ） | 7 km | Day 1 15:309h |
The small figure under each cutoff is the time from the start. Day 1 is the day of the start.
Registration
- Registration
- Wed, 17 Jun 2026 – Mon, 31 Aug 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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