Ultra Running Hub Cemoro Lawang, Indonesia · Saturday, November 7, 2026
Fixed Distance 50 mi
Bromo Tengger Semeru Ultra 70km
Race day
70 km Distance
2,894 m Climbing
7.8 Grit · Hardcore
What the course asks
Climbing rate 41 m / km
Mountain. Significant climbing. Steep sections will require power hiking.
Time limit 18 hours
15:26 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 89% of 50 mi races. Measured against 486 races of the same distance. Cut-off calculator →
Field size ~228 Large. Rarely out of sight of another runner.
DUV results for the 2025 edition (70km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
The Aid Station
Course-specific beta from the community
This is a mountain course. Poles are highly recommended for the sustained climbs.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 70 km of trail with 2,894 m of ascent.
- Trail Running Shoes41 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition70 km of self-supported fuelling between aid stations.
- Hydration VestsPole attachment and chest-strap stability on steep ground.
- Trekking Poles2,894 m of ascent to walk up.
- HeadlampsA 18 h limit puts you out there after dark.
Course Notes
Running at the high altitude region of Bromo Tengger Semeru National Park
Similar races
Other 50 mi trail ultras, closest in distance first.