About This Event
Trail 100 Andorra by UTMB is an exciting new trail running expedition into the mighty Pyrenees, offering runners the chance to explore the beauty and rich cultural heritage of Andorra. As part of the prestigious UTMB World Series, this event provides a comprehensive range of distances designed to suit runners of all levels, from newcomers to ultrarunning veterans. Set in the mountainous principality of Andorra, nestled between France and Spain, the race takes advantage of the region's dramatic alpine terrain and unique cultural position. The event allows participants to test their limits while discovering one of Europe's most distinctive mountain environments, where Catalan heritage meets high-altitude adventure. With five distance options ranging from 10 kilometers to 105 kilometers, the race weekend creates a festival atmosphere where the global trail running community can gather in this small but spectacular nation. Each distance offers its own character while contributing to the overall celebration of mountain running in the Pyrenees.
Choose Your Distance
10K
21K
The 24.9K route showcases Andorra's steep Pyrenean geography, though specific elevation gain data is not currently available. Runners navigate mixed terrain including technical singletrack, wider mountain paths, and exposed sections above treeline. The course follows the principality's characteristic topography of sharp elevation changes and sustained climbs.
50K
The Trail 100 Andorra by UTMB 50K serves as the technical middle ground in this mountain series, designed for runners ready to test themselves in genuine Pyrenean conditions without committing to ultra-distance extremes. Part of the UTMB World Series, the race unfolds across Andorra's dramatic high-altitude landscapes, where runners navigate demanding terrain between mountain villages and alpine ridges. This distance attracts a wide spectrum of participants: marathoners seeking their first mountain ultra, experienced trail runners building toward longer UTMB events, and seasoned ultrarunners looking for a challenging effort that allows quicker recovery. The course typically involves sustained climbing and technical descents characteristic of Andorran terrain, though specific elevation profiles vary by year. As with all UTMB World Series events, the race operates under strict international trail running standards, including mandatory gear requirements and established cutoff times. Runners should prepare for exposed high-mountain conditions and the physical demands of sustained climbing at altitude, where weather can shift rapidly even in June.
80K
The course traverses Andorra's mountainous landscape, moving through the small nation's network of trails that connect villages perched in high valleys. Runners encounter the Pyrenees' characteristic granite peaks, alpine meadows, and forested sections that give way to exposed ridgelines. The race organization provides the aid station support and course marking standards expected from UTMB World Series events. Andorra's trail network features a mix of purpose-built singletrack, historical shepherding paths, and segments that transition between technical rocky sections and more runnable terrain. The compact nature of the country means runners may pass through populated areas before returning to remote mountain zones, creating varied scenery throughout the distance.
105K
The flagship Ultra 105K represents the ultimate Pyrenean challenge with nearly 7,000 meters of elevation gain over 107 kilometers. This distance is reserved for the most experienced mountain ultrarunners capable of handling extreme vertical gain and extended mountain exposure.