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Marathon 45 kilometers

It was the first mountain marathon with more than 4000 positive meters!

Countdown to the Canfranc-Canfranc



Technical details

Izas Outdoor
45 kilometers
Izas Outdoor
Elevation gain
3.910 meters
Izas Outdoor
Maximun bib number
300 runners
Izas Outdoor
Time limit
12 hours


The tenth edition was the first one in which it was possible to make its original route in a complete way. The weather conditions and the terrain make difficult its completion if the conditions aren’t almost perfect. Its nearly 4000 meters of positive cumulative gain in 45 kilometers make it one of the most difficult and alpine marathons in Spain and Europe. With only four uphills, it will make enjoy to all who dare with it.


General information

It is a race that always have left a mark on the runner who has dared to run and enjoy it. It was the race from which all started, and still is the flagship along with the Ultra 100km. Here have won all the big names: Salva Calvo, Luis A. Hernando, Manuel Merilla, Óscar Pérez, Javi Domínguez, Sergio Gimeno, Jokin Lizeaga and Pablo Villalobos. Who will be the next that write her/his name between this names?

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After a first ascent of 1500 positive meters, begins a fast and technical descent to the Izas valley. It goes on with a vertical kilometer towards Larraca peak, then it pass through the Astún valley and the sky station of Candanchu. The last part of the race takes place along Loma Verde and the peak Aspe base, one of the places more wild and beautiful of the race, then it reaches the Estiviellas col, where it starts the last and long downhill toward the finish.

Select the original or alternative route in the bottom icon at the legend

Warnings Race Map

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