Grand Diamond Trail 2026
The ~48 km course (about 2,500 m D+) of the Grand Diamond Trail Run, held in Nara, with a 12-hour time limit. 300 places. The next edition had not been announced as of 2026-10-27.
2,500 m of climbing over 48 km (52 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 290 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, 25 Apr 2026
- Start
- 08:00
- Location
- Nara, Japan
- Distance
- 48 km
- Elevation gain
- 2,500 m
- Time limit
- 12h
- ITRA
- 50K
- Official website
- www.actrep-sports.com/diamond-gt
Elevation profile
No elevation data yet.
Aid stations and cutoffs
| # | Distance | Aid station | Segment | Cutoff |
|---|---|---|---|---|
| F | 48 km | FINISH | 48 km | 20:0012h |
The small figure under each cutoff is the time from the start.
Practice courses
See the course on the Runnable map ↗
Runnable has practice courses on this race's trails, split into sections to run and sections to walk (pages in Japanese).
- Runnable practice course (47.7 km)
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 50K 2027Sat, 30 Jan 2027 · Nara, Japan · 50 km
- Ishibutai 100 25K 2027Sun, 31 Jan 2027 · Nara, Japan · 25 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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