Mantasoa, Madagascar · Saturday, May 9, 2026
Fixed Distance 50 mi
Semi Trail des Ô Plateaux
Race completed
70 km Distance
2,760 m Climbing
7.6 Grit · Hardcore
What the course asks
Climbing rate 39 m / km
Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 17 hours
14:34 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 86% of 50 mi races. Measured against 455 races of the same distance. Cut-off calculator →
Field size ~40 Small. Long stretches with nobody in sight.
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 rolling course. Expect fast, runnable sections where rhythm is key.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 70 km of trail with 2,760 m of ascent.
- Trail Running Shoes39 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 Poles2,760 m of ascent to walk up.
- HeadlampsA 17 h limit puts you out there after dark.
Course Notes
Mantasoa - Tana.
Similar races
Other 50 mi trail ultras, closest in distance first.