Ultra-Trail Guara Somontano 2026: dates, distances, and key details

Plan your race pace

Alquézar will once again become the center of Spanish trail running with the Ultra-Trail Guara Somontano 2026, an event that blends canyons, limestone rock trails, small villages, and finely tuned logistics. Scheduled for October 2, 3, and 4, the race unfolds over three days of activity in the Sierra de Guara, province of Huesca, with staggered starts, bib collection, and a program designed to combine physical effort, stunning scenery, and precise organization.

A race born to face the landscape head-on

The history and appeal of the Ultra-Trail Guara Somontano are deeply tied to the territory. The Sierra and Canyons of Guara and the village of Alquézar are not mere backdrops but integral to the race’s identity. What began as a way to bring runners into a unique natural setting has become a benchmark event in Aragon and Spanish trail running.

The terrain itself demands respect: loose stones, runnable tracks, prolonged climbs, and technical descents challenge runners to manage their efforts intelligently. The variety of terrain forces a balance between strength and adaptability, making it a race that rewards both physical toughness and tactical thinking.

The routes that define Guara’s character

In 2026, the Ultra-Trail Guara Somontano features four main distances:

• 82 kilometers (Ultra-Trail): The flagship ultra-trail with approximately 4,700 meters of positive elevation gain. This course demands patience, terrain reading, and careful hydration management, especially in exposed, heat-prone sections.
• 48 kilometers (Vuelta a Sevil): About 2,500 meters of elevation gain, this distance offers a demanding middle ground, punishing changes of pace and rewarding consistency.
• 30 kilometers (Trail del Río Vero): Featuring 1,400 meters of positive elevation, this route is ideal for experienced mountain runners seeking a balance of intensity and technical challenge.
• 17 kilometers (Trail Alquézar Rosado): With 850 meters of elevation gain, this shortest distance serves as an accessible but fully mountain-style introduction to the event.

The design of these routes mixes technical trails, track sections, dry ascents, and smoother running stretches, creating rhythm and variety that give the race moments of mental pause amidst ongoing physical effort.

Event schedule and organization

The 2026 edition’s timetable is carefully structured to optimize runner experience and logistical flow:

• Friday, October 2: Bib number collection takes place at the annex building next to City Hall in Zona Tallada, open from 12:00 to 14:00 and then from 16:00 to 22:00. Pre-race relaxation activities are also provided to help runners prepare mentally and physically.
• Saturday, October 3: The 82-kilometer ultra starts early at 03:00 from Cueva Mullón, below Alquézar’s castle. The 48K race begins at 07:00, followed by the 30K at 08:00. The finish line is located at Calle Nueva – Fronton, where runner bags can be collected for those who missed earlier pickup. Children’s races take place on Saturday afternoon.
• Sunday, October 4: The 17-kilometer race starts at 09:00, with bib pickup from 07:00 to 09:00 at the Mullón area. The awards ceremony is scheduled for 14:00 in Cueva Mullón.

This staggered schedule reduces queues and uncertainty, allowing runners to focus on crucial pre-race rituals like rest, nutrition, and gear checks. In trail running, the race begins long before the starting line.

Alquézar and Sierra de Guara as a sporting stage

Alquézar is not just a scenic village but a core part of the race experience. Its narrow stone streets frame the start and finish, reinforcing the event’s character. The surrounding Sierra de Guara offers a rugged mountain backdrop with canyons, ridges, and ravines that demand constant attention and pacing strategies from runners.

The terrain varies between shaded and open areas, with rock formations that remind participants that mountain trail running is a distinct discipline requiring respect for the landscape. This coexistence of beauty and difficulty defines the Ultra-Trail Guara Somontano and sets it apart.

Behind the scenes, a strong community of volunteers, local councils, mountain clubs, and other groups sustain the event. Their collaboration ensures continuity and helps maintain the event’s identity and quality year after year.

Running the race: strategy, challenge, and experience

The 82-kilometer ultra is as much a mental and tactical challenge as a physical one. Starting fast is rarely advantageous; instead, runners must pace themselves carefully, managing energy reserves and hydration, especially under the variable October conditions. The race alternates between runnable sections and technical zones where walking is often necessary to conserve strength.

Runners consistently praise the balance between scenic beauty and demanding terrain. The course does not resemble extreme high-altitude mountain races but offers a comprehensive challenge that requires smart effort management and mental resilience.

Participation and competitive level

The 2025 edition attracted over 1,400 runners across the different distances, a strong indicator of the event’s appeal. It draws a wide spectrum of participants: from ultra specialists to mountain middle-distance enthusiasts.

Elite runners also feature prominently. In 2025, winners included Aitor Tomás and Anne Bidalun in the ultra distance, Iván Calvo and Carolina Rius in the Vuelta a Sevil 48K, and Álvaro Osanz and Claudine Soucie in the Trail del Río Vero 30K. This blend of popular and elite participation elevates the race’s competitive and community atmosphere.

Entries, continuity, and future outlook

Registrations for the 2026 edition open on February 6, a key date for runners planning their calendars well in advance. The event’s multi-day format, clear distance structure, and stable organization provide predictability valued in a trail running circuit often marked by sudden changes.

While the format remains consistent, organizers occasionally adjust routes, cutoffs, and logistical details to adapt to conditions, ensuring the race continues to evolve without losing its core identity.

Ultimately, the Ultra-Trail Guara Somontano 2026 promises a complete trail running experience: a unique blend of mountain challenge, natural beauty, community support, and sporting tradition centered on the historic and rugged landscape of Alquézar and the Sierra de Guara.