Grand Diamond Trail 2027
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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)
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
- Sat, 19 Jun 2027
- 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.
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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Points to consider for this course
- The overall time limit allows about 15:00/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.
- The profile is missing or estimated. Check the official course map for climb locations and steep sections.
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.
- Grand Diamond Trail 48km 2026 · 2026-04-25Compared 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: 2026-10-27