Trail running course near Obernai, Grand Est, FR
Trail Alsace Grand Est by UTMB

Trail Alsace Grand Est by UTMB 18K

18K·Obernai, France
mountainforesttrailqualifier

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Distance18K
Date15 May 2026
Difficulty3/5

About This Race

Part of the UTMB World Series, this 18-kilometer route through the Alsace region offers runners a compact exploration of the area's vineyard-draped hillsides and medieval architecture. Starting from Obernai, a well-preserved town known for its half-timbered houses and proximity to the Vosges foothills, the course delivers a genuine trail experience without the full-day commitment of longer mountain races. The distance strikes a practical balance for runners seeking quality trail terrain in a manageable window. The route provides enough variety to showcase what makes Alsatian trail running distinctive—switchbacks through vine rows, passages near historic châteaux, and views across the Rhine plain—while remaining accessible to those building their trail credentials or managing weekend race schedules alongside other commitments.

The route navigates the distinctive landscape where the Alsace plain meets the Vosges foothills. Runners traverse vineyard paths that have defined this wine-growing region for centuries, with sections passing within view of medieval fortifications that dot the ridgelines. The mixed terrain includes established trail sections and vineyard access paths, requiring attention to footing but remaining runnable throughout for prepared participants.

Location

Practical Info

Weather

Mid-May typically brings mild spring conditions with temperatures ranging 10-20°C (50-68°F). Morning starts may be cool; afternoon sun can warm vineyard-exposed sections. Spring rain remains possible.

Accommodation

Obernai offers hotels and guesthouses within walking distance of race logistics. Strasbourg, 30 kilometers north, provides broader lodging options and international rail connections. Book early as May is active tourist season in Alsace wine country.

Best For

ultra runnersUTMB qualifierstrail enthusiasts

Other Distances at This Event

10.5K

400m gain

Despite its shorter distance, this 10.5-kilometer course packs substantial elevation gain that provides a concentrated challenge. The Trail des Ecuyers offers an intense but brief introduction to the region's terrain character.

29K

Detailed course information for 2026 has not been released. Historical editions have incorporated Alsace's characteristic terrain: vineyard trails with exposure and views across the Rhine valley, forested ascents into the Vosges foothills, and ridgeline sections that connect the region's wine country to its mountain culture. Runners should anticipate mixed surfaces including dirt trails, forest paths, and potentially brief paved sections through villages, with technical demands typical of managed trail networks rather than wilderness routes.

47K

109K

The route departs from Obernai, a well-preserved medieval town that serves as the cultural and logistical hub for the event. Runners encounter the characteristic mixed terrain of the region, where maintained trails alternate with more technical sections requiring focused attention. The course weaves through areas marked by centuries of European history, though specific routing details and aid station locations have not been published. The distance and terrain combination necessitates headlamp use for most runners, as finishing times will extend well beyond daylight hours. Course marking follows UTMB World Series standards, with clear waymarking throughout the route.

156K

The 156K course departs from Obernai, a town that has preserved its medieval fortifications and serves as gateway to the Alsace Wine Route. Runners traverse mixed terrain including forest singletrack through the Vosges foothills, fire roads connecting ridge systems, and vineyard trails that occasionally open to views across the Rhine plain toward Germany's Black Forest. The route's character shifts between technical wooded sections requiring careful footing and more runnable passages through agricultural landscapes, with navigation supported by UTMB's standard marking protocols.