Ultra Running Hub Lhuis, France · Saturday, May 9, 2026
Trail So Bugey - Lintégrale So Bugey
What the course asks
DUV results for the 2026 edition (72km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, May
Regional 2001-2020 average for May — NASA POWER, grid elevation 606 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 72km | 70 | Clement Bourjaillat · 07:08:57 | Cecile Milegia · 08:35:03 |
| 2025 | 72km | 40 | Laurent Eckenfelder · 07:03:08 | Caroline Delord · 07:50:33 |
| 2024 | 72km | 33 | Jonathan Thery · 07:22:17 | Anne Martel-Vidal · 10:06:45 |
The field grew 75% between 2025 (40) and 2026 (70). 10% of the 2026 field were women.
DUV results for the 2026 edition (72km) — 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 72 km of trail with 3,200 m of ascent.
- Trail Running Shoes 44 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition 72 km of self-supported fuelling between aid stations.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 3,200 m of ascent to walk up.
- GPS Watches Battery life first — a 72 km day outlasts most full-GPS modes.
Overview
The Trail So Bugey - Lintégrale So Bugey, organised by association So Bugey, is a 50-mile trail race in Lhuis, France, taking place in May. The course covers 72 km with 3200m of elevation gain, meaning 44.4m of climb per kilometre.
The race is structured as three distinct loops: a 22km loop, followed by a 39km loop, and finally an 11km loop, bringing runners across the finish line three times. With 70 finishers in its latest edition, this race has a larger field than 64% of its 653 peer 50-mile races. The entry fee is 60-64€.
Similar races
Other 50 mi trail ultras, closest in distance first.