Canfranc-Canfranc 2026

Canfranc-Canfranc is a mountain trail series held in Canfranc-Estación, a village in Spain’s Aragonese Pyrenees near the French border. It takes place in September and features six races ranging from 6K to 100K, covering short mountain efforts, a demanding 45K marathon, and full ultra-distance races within the same weekend. The headline Ultra 100K is described by the organizers as the world's longest 100K, with 8,850 meters of climbing. Even the shorter ultras are substantial: the 70K has 6,100 meters of ascent, and the 45K marathon climbs 4,000 meters. The courses utilize the Canfranc valley as a steep terrain, with profiles likened to a jumping saw and long vertical ascents rather than gentle, rolling trails. This is not a quick, smooth race series; it is designed around climbing, descending, and navigating genuine mountain terrain. Experienced mountain runners discuss it with notable intensity: Ion Azpiroz referred to the 100K as paradise that can feel like hell, while Salva Calvo stated it preserves the sport's mountaineering spirit. This accurately depicts the participants: runners seeking a significant Pyrenean challenge, not merely a scenic trail weekend.