Ishibutai 100 50K 2027
Also known as: ISHIBUTAI 100
Ishibutai 100 is a winter trail race set in Asuka, Nara, with its history and hills, starting and finishing at Asuka Kaze Butai. The 50K is two laps of the 25km loop: learn the course on the first, then manage pace and fuelling on the second. A step up toward longer trail races.
2,000 m of climbing over 50 km (40 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
- Sat, 30 Jan 2027
- Start
- 09:45
- Location
- Nara, Japan
- Distance
- 50 km
- Elevation gain
- 2,000 m
- Time limit
- 12h
- ITRA
- 50K
- Official website
- go-trail.net/pages/ishibutaitop
Elevation profile
No elevation data yet.
Aid stations and cutoffs
| # | Distance | Aid station | Segment | Cutoff |
|---|---|---|---|---|
| 1 | 25 km | Aid 1あすか風舞台（1周目） | 25 km | — |
| F | 50 km | FinishFINISH あすか風舞台 | 25 km | Day 1 21:4512h |
The small figure under each cutoff is the time from the start. Day 1 is the day of the start.
Registration
- Registration
- Sat, 1 Aug 2026 – Sat, 31 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
- BAMBI100 100mile 2026Sat, 21 Nov 2026 · Nara, Japan · 160 km
- Diamond Trailrun 33K 2026Sat, 7 Nov 2026 · Nara, Japan · 33 km
- Ishibutai 100 120K (unmarked) 2027Sat, 30 Jan 2027 · Nara, Japan · 120 km
- Ishibutai 100 100K 2027Sat, 30 Jan 2027 · Nara, Japan · 100 km
- Ishibutai 100 25K 2027Sun, 31 Jan 2027 · Nara, Japan · 25 km
- Amagase 48km (50 km race in 2026) 2027Sat, 10 Apr 2027 · Kyoto, Japan · 47.3 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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