![kilian jornet on X: "One of the hardest training session I do is what I call VK10K. Concept is simple: to run a vertical kilometer, run down easy and run a 10K kilian jornet on X: "One of the hardest training session I do is what I call VK10K. Concept is simple: to run a vertical kilometer, run down easy and run a 10K](https://pbs.twimg.com/media/EgwYs3UXYAE9AdP.jpg)
kilian jornet on X: "One of the hardest training session I do is what I call VK10K. Concept is simple: to run a vertical kilometer, run down easy and run a 10K
![Kilian Jornet: “Monte Rosa SkyMarathon - one of the best races in the world” - Monterosa Sky Marathon Kilian Jornet: “Monte Rosa SkyMarathon - one of the best races in the world” - Monterosa Sky Marathon](https://www.monterosaskymarathon.com/wp-content/uploads/2018/06/%C2%A9iancorless.com_MonteRosa2018-03225.jpg)
Kilian Jornet: “Monte Rosa SkyMarathon - one of the best races in the world” - Monterosa Sky Marathon
![Kilian Jornet: “Monte Rosa SkyMarathon - one of the best races in the world” - Monterosa Sky Marathon Kilian Jornet: “Monte Rosa SkyMarathon - one of the best races in the world” - Monterosa Sky Marathon](https://www.monterosaskymarathon.com/wp-content/uploads/2018/06/%C2%A9iancorless.com_MonteRosa2018-03084.jpg)
Kilian Jornet: “Monte Rosa SkyMarathon - one of the best races in the world” - Monterosa Sky Marathon
![Ski-mountaineering: Kilian Jornet achieves the biggest day of his career in Romsdal (Norway) – Alpine Mag | International Magazine Ski-mountaineering: Kilian Jornet achieves the biggest day of his career in Romsdal (Norway) – Alpine Mag | International Magazine](https://alpinemag.com/wp-content/uploads/sites/2/2023/04/JORNET_ROMSDAL.jpg)
Ski-mountaineering: Kilian Jornet achieves the biggest day of his career in Romsdal (Norway) – Alpine Mag | International Magazine
![Using poles when trail running – how to improve and become more efficient in the mountains | South China Morning Post Using poles when trail running – how to improve and become more efficient in the mountains | South China Morning Post](https://cdn.i-scmp.com/sites/default/files/d8/images/methode/2020/10/05/225de02a-06b9-11eb-afc8-92e0da0ef1c3_image_hires_175834.jpg)
Using poles when trail running – how to improve and become more efficient in the mountains | South China Morning Post
Kilian Jornet's VK in Norway | A vertical kilometer "VK" is all about pure performance. It's not about technique or strategy it's just how much you can work and how strong you
![iRunFar on X: "Kilian Jornet leads the Hardrock 100 through Ouray (mile 43.9) in 8:43. He took it easy descending. #HR100 http://t.co/RVctf6g3Nv" / X iRunFar on X: "Kilian Jornet leads the Hardrock 100 through Ouray (mile 43.9) in 8:43. He took it easy descending. #HR100 http://t.co/RVctf6g3Nv" / X](https://pbs.twimg.com/media/BsSn8M0CMAA5XtK.jpg)