Ultra Running Hub Mantasoa, Madagascar · Saturday, May 9, 2026
Semi Trail des Ô Plateaux
What the course asks
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.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 70km | 40 | Edmond Rajaliana · 07:15:29 | Nambinintsoa Ravaoarisoa · 10:21:10 |
| 2024 | 70km | 214 | Tojonirina Andriamifidy · 06:31:38 | Andree Sidonie Randrianarivelo · 08:21:21 |
| 2023 | 70km | 197 | Jean Jean · 06:33:02 | Marie Noeline Razafiarisoa · 09:10:01 |
| 2019 | 70km | 278 | Hajaniaina Olivier Raolison · 06:13:03 | Landinirina Ratianarisoa · 07:52:18 |
| 2018 | 65km | 283 | Elson Tiana Rasolohery · 05:56:35 | Landinirina Ratinaharisoa · 07:34:38 |
| 2017 | 65km | 294 | Jean-de la Croix Rakotomalala · 06:13:10 | Marie-Noelle Bourgeois · 07:08:33 |
| 2016 | 65km | 256 | William Rasendrason · 06:14:15 | Landinirina Ratinaharisoa · 08:22:42 |
| 2014 | 65km | 263 | William Rasendrason · 05:58:44 | Estelle Carret · 07:23:52 |
| 2013 | 65km (Partial) | 21 | Joachim Randrianirina · 05:29:59 | Sarah Vieuille · 06:51:14 |
| 2011 | 64km | 62 | Andriamionina Andriamionina · 07:09:00 | Jean-Benedicte Petit · 09:02:00 |
The field shrank 81% between 2024 (214) and 2025 (40). 40% of the 2025 field were women.
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 Shoes 39 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition 70 km of self-supported fuelling between aid stations.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 2,760 m of ascent to walk up.
- Headlamps A 17 h limit puts you out there after dark.
Overview
The Semi Trail des Ô Plateaux in Mantasoa, Madagascar, is a 70 km trail race with 2760m of elevation gain, putting its climb per kilometer at 39.4m. This is a fixed-distance event.
The 17-hour time limit imposes a cutoff pace of 14.6 minutes per kilometer, making it tighter than 14% of 50-mile races. With 40 finishers in its latest edition, the race has a smaller field than 42% of 50-mile races. The Association UTOP has organised this race for 10 editions, from 2011 to 2025.
Similar races
Other 50 mi trail ultras, closest in distance first.