Trail running course through mixed terrain in Grand Est, FR
Trail Alsace by UTMB

Trail Alsace by UTMB 10.5K

10.5K·Obernai, France
mountaintrailqualifier

AI-generated image

Distance10.5K
Date15 May 2026
Difficulty2/5

About This Race

The Trail Alsace by UTMB 10.5K offers runners a compact introduction to the vineyard-laced trails of the Bas-Rhin region. Part of the UTMB World Series, this course provides a manageable distance for those new to trail running or seeking a focused effort without the demands of ultra-distance racing. The route typically finishes within two hours, making it accessible for runners transitioning from road racing or testing their trail legs before committing to longer mountain events. Starting from the medieval town of Obernai, runners navigate mixed terrain that captures the character of Alsatian trails without requiring technical mountain experience. The course maintains the signature UTMB atmosphere—timing infrastructure, aid stations, and event energy—while keeping the physical commitment reasonable. This distance serves dual purposes: a genuine race for competitive runners and a cultural trail experience for those drawn to the region's distinctive landscape. The May timing places the event in late spring, when the vineyards show fresh growth and temperatures favor sustained effort. Obernai provides straightforward access from Strasbourg, and the town's compact center offers lodging within walking distance of race activities. For runners considering the UTMB World Series, the 10.5K delivers an authentic sample of the circuit's organization and community.

The course weaves through mixed terrain characteristic of the lower Alsace foothills. Runners encounter vineyard trails, forest paths, and occasional village sections that define the region's topography. Specific elevation details have not been published, but the route maintains the rolling character typical of wine country terrain rather than steep Alpine climbs.

Location

Practical Info

Weather

Mid-May in Alsace typically brings mild spring conditions with temperatures ranging from 10-20°C. Morning starts may be cool, with warming through late morning. Rain possible but less frequent than earlier spring months.

Accommodation

Obernai's old town center offers hotels and guesthouses within walking distance of race activities. Strasbourg, 30 kilometers north, provides additional lodging options and train connections. Booking early is advisable as the UTMB event draws international participants.

Best For

ultra runnersexperienced trail runnersinternational travelers

Other Distances at This Event

18K

Starting in Obernai, the route heads into the vineyards that blanket the eastern slopes of the Vosges. The course follows a mixture of wide vineyard tracks and narrower forest trails, with the terrain varying throughout. Runners should expect both runnable sections through the vines and more technical passages where roots and rocks require attention. The route returns to Obernai after a tour through the surrounding countryside, finishing in the town center where UTMB World Series events traditionally create a festival atmosphere.

29K

47K

The course circles through the Alsatian wine country surrounding Obernai, alternating between vineyard paths, forest trails, and brief village passages. Expect sustained climbs through terraced vineyards where footing can be technical, with narrow dirt paths between vine rows. Forest sections provide shade and singletrack variety, typically on well-maintained trails through mixed deciduous woodland. The route includes several villages where cobblestone streets and stone steps interrupt the rhythm before returning to dirt.

109K

The route traverses the limestone and sandstone trails of the Northern Vosges, moving between dense forest sections and open vineyard country where runners pass beneath medieval castle ruins that mark territorial boundaries dating back centuries. Terrain varies from well-maintained forest roads to technical rocky sections requiring careful foot placement, particularly when conditions are wet. The course connects multiple villages where local support and cultural immersion add dimension to the physical challenge, with aid stations typically featuring regional specialties alongside standard ultra nutrition.

156K

5,100m gain

The flagship 156-kilometer ultra presents the ultimate test with 5100 meters of elevation gain across the Alsace region. This formidable challenge rewards finishers with four Running Stones and represents one of the most demanding experiences in the UTMB World Series network.