Athletes on Reddit

Kílian Jornet

Trail runner and ski mountaineer

How we know it's theirs

His 2025 r/trailrunning AMA, posted from this account

We retrieved 24 posts and 100 comments from u/Kilian_Jornet, dated 2025 to 2026, most often in r/trailrunning, r/Mountaineering and r/MapPorn.

Best moment

u/Kilian_Jornet posted in r/trailrunning

Would you run there?

Fun video at home (Norway) a couple of years ago.

u/Kilian_Jornet replied

By the way, I know this might look risky, but I think we often put ourselves in the skin of the person we’re watching, not in their mind. For me, a route like this is something I’ve prepared, and I…

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By the way, I know this might look risky, but I think we often put ourselves in the skin of the person we’re watching, not in their mind.

For me, a route like this is something I’ve prepared, and I know the terrain, the conditions and my own capacities on it. The consequence can be high, but that’s not the same as the risk, which depends a lot on preparation.

Zero risk doesn’t exist, and I turn around in about half of my activities when things don’t add up.

I wrote a longer piece on how I think about risk, if anyone is interested: https://kilianjornet.substack.com/p/fear-risk-and-the-mountains

More moments

A redditor wrote in r/trailrunning

On “I am Kilian Jornet - athlete, activist and co-founder of NNormal. Ask me anything!”

First it was high carb, then it was heat suits. What's the next training secret that's going to hit the masses?

u/Kilian_Jornet replied

I don’t know about the masses but I believe that cognitive management will be the next frontier in performance. If we think about why we get tired, why we stop pushing... It’s (almost) never because of failure of one system…

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I don’t know about the masses but I believe that cognitive management will be the next frontier in performance.

If we think about why we get tired, why we stop pushing...

It’s (almost) never because of failure of one system. Our “body / central governor” prevents us to get to exhaustion and die from effort, and we see that athletes that perform the best are the ones that have a bigger pain tolerance.

We see the effects of adrenaline, stress or the hormonal release during near dying experiences that indicates that we can push more than what our central governor is often telling us.

So it’s more complicated than heat or fueling but IMO is the next big frontier.

For the masses I believe probably Individualisation of everything (fueling, training load, oxygen systems, temperature system, renal system…) will have a huge impact because today most are following what works for others without analysing their individual circumstances and capacity.

A redditor wrote in r/trailrunning

On “What happens when trail running goes Olympic? When technical races disappear? When the sport gets expensive? I wrote down 10 observations for 2026”

Is this really posted by the GOAT Killian Jornet?!? I think it's actually posted by Killian. This is an AMA that included evidence that it's him. Pretty cool, in my opinion.

u/Kilian_Jornet replied

Yes, that's me!