Oze Tokura Mountain Marathon 10 km 2026
Also known as: MAMMUT KATASHINA MOUNTAINS SERIES
A 10 km category from the Oze Tokura ski area that turns at Tashirohara via Fujimishita. This Tashirohara course was called the 'Short' until last year and was renamed 'Middle' from 2026.
450 m of climbing over 10 km (45 m per km).
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, 25 Oct 2026
- Start
- 09:45
- Location
- Gunma, Japan
- Distance
- 10 km
- Elevation gain
- 450 m
- Time limit
- 3h
- ITRA
- 10K
- Official website
- oze-nationalpark-marathon.com/about
Elevation profile
No elevation data yet.
Aid stations and cutoffs
| # | Distance | Aid station | Segment | Cutoff |
|---|---|---|---|---|
| F | 10 km | FinishFINISH（尾瀬戸倉スキー場） | 10 km | Day 1 12:453h |
The small figure under each cutoff is the time from the start. Day 1 is the day of the start.
Registration
- Registration
- Sat, 25 Jul 2026 – Wed, 14 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.
Other races
- Joshu Hotakasan Skyview Trail 138km 2026Sat, 12 Sep 2026 · Gunma, Japan · 138 km
- Joshu Hotakasan Skyview Trail 77km 2026Sat, 12 Sep 2026 · Gunma, Japan · 77.5 km
- Oze Tokura Mountain Marathon 21 km 2026Sun, 25 Oct 2026 · Gunma, Japan · 21 km
- FunTrails Round 韋駄天 8K 2026Sun, 20 Dec 2026 · Saitama, Japan · 8.7 km
- AKITA Trail Run Festival 10 km 2026Sun, 18 Oct 2026 · Akita, Japan · 10 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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