Kilian Jornet has already won the worlds most prestigious ultra marathons and now he holds the Fastest Known Time (FKT) for summiting Mt. Everest. He used no fixed ropes or oxygen and completed the ascent from Advanced Base Camp (ABC) in 26 hours. Mt. Everest in case you forgot is over 29,029′ in elevation. Kilian already holds record ascent times for Mt. Kilimanjaro, Mt. Aconcagua, Mt. Denali, Matterhorn and Mt. Mont Blanc. When he is not winning the most difficult ultra marathons or summiting the largest mountains he is also a professional ski mountaineer.

Kilian’s Everest expedition is the last on his “Summits of My Life” Project #SOML. He had tried to summit Everest in 2016, but ran into weather issues. Four people died this week while climbing Everest making Mr. Jornet’s accomplishment even more impressive.

Kilian has a VO2 max of 89.5 ml/kg/min one of the highest ever recorded. Want to know more about how Kilian’s life of red blood cell hacking? Read this NYT piece on “Creating the All Terrain Human“.