BTR Ultra 100K 2026
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An individual trail race at Batur Natural Hot Spring. A volcanic trail. Dates and starts follow the 2026 category schedules; the 100K starts at 18:00 on May 15.
7,244 m of climbing over 106 km (68 m per km).
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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 291 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
- Fri, 15 May 2026
- Start
- 18:00
- Location
- Indonesia
- Distance
- 106.2 km
- Elevation gain
- 7,244 m
- Time limit
- 34h
- Official website
- balitrailrunning.com/race-categories/btr-ultra-100km
Elevation profile
No elevation data yet.
Aid stations and cutoffs
| # | Distance | Aid station | Segment | Cutoff |
|---|---|---|---|---|
| 1 | 40 km | WS4 | 40 km | Day 2 03:009h |
| 2 | 80 km | WS8 | 40 km | Day 2 19:0025h |
| F | 106.2 km | FINISH | 26.2 km | Day 3 04:0034h |
The small figure under each cutoff is the time from the start. Day 1 is the day of the start.
Other races
- Trail of the Kings Lake Toba Caldera Crown 100K (Indonesia) 2026Sat, 13 Jun 2026 · Indonesia · 101.2 km
- Trail of the Kings Lake Toba Caldera Crown 100K (Indonesia) 2027Sat, 12 Jun 2027 · Indonesia · 101.2 km
- Trail of the Kings Lake Toba Ultimate Expedition 60K (Indonesia) 2026Sat, 13 Jun 2026 · Indonesia · 64 km
- Trail of the Kings Lake Toba Ultimate Expedition 60K (Indonesia) 2027Sat, 12 Jun 2027 · Indonesia · 64 km
- Trail of the Kings Lake Toba King's Ascent 28K (Indonesia) 2026Sat, 13 Jun 2026 · Indonesia · 23.6 km
- Trail of the Kings Lake Toba King's Ascent 28K (Indonesia) 2027Sat, 12 Jun 2027 · Indonesia · 23.6 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 19:13/km including stops. This average does not guarantee meeting intermediate cutoffs.
- The longest gap between recorded points, including the start, is about 40 km (0–40 km). This does not list every water source.
- 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.
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: 2026-11-06