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I Tested David Goggins’ 40% Rule

MrUnprepared

976,632 views

I ran as far as I could in one direction… then I stopped. Then I had to run all the way back.

Inspired by David Goggins' 40% Rule, I designed the hardest running challenge I’ve ever attempted — to push past my mental and physical limits and find out what I’m truly capable of.

What started as a test of endurance turned into a transformative experience — and it left me with one question: What on earth is actually possible?

If you enjoyed the video, please leave a like and subscribe to the channel. I promise I’m doing everything I can to make the best videos possible!

🎥 Clips I used:
watchv=dim7e8e9jky&t=415s
If You Feel LOST, LAZY, And UNMOTIVATED In...
This Will Change Your Life! Meghan, Duches...

🎵 Music & Sound: Epidemic Sound

📍 My Strava:
Strava: strava
This Run: Strava: strava

If you'd like to support the channel and help me create better videos faster, you can make a small donation here:
paypal.me/mrunprepared

#ultrarunning #davidgoggins #40percentrule #endurancechallenge #challenge

20 Comments

@MrUnprepared Creator 1 year ago Pinned

I think I’ve found my current 40%.  Now it’s your turn:  What’s YOUR 40% — and are you finally going to chase it?

Let me know in the comments.

@bormixnevinni884 1 year ago

"my legs start to hurt and it is only 56k, weird" really weird, yeah...

@rodiona8781 1 year ago

Sounds like 200km is only 40% of what you're capable of now...new video?

@walfrd 1 year ago

Crazy how we have the free will to just wake up and run 200k away one day

@JadenKirschner 1 year ago

Leaving the strata title at afternoon run is crazy

@adampielach4942 1 year ago (edited)

Imagine being finally motivated to get back to running. You open Strava, see someone's ~204 km, close the app, uninstall it, go back to whatever you were doing before 😄

@sparezy6206 1 year ago

Bro jogged 90 km for 9 hours, and looked like he just went for a 5km run 👺

@ZelleryVR 10 months ago

thank god I can watch someone who measures distance in km

@MarkFaldborg 1 year ago

Going up, putting the camera down, then running past it at 100 miles did not go unnoticed :)

@FREDDAGGS 1 year ago

Most people are only using 40% of their knee cartilage

@kingsgold 1 year ago

For Goggins, I think he was talking to the general public. 40% being the point at which you start to feel tired and stop. This dude gave 140% of his effort.

@Mp57navy 11 months ago

That's what they told us 20 years ago in the army. And yes, they were right. But, those limits are there for a reason: To prevent permanent damage.

@Finkelfunk 1 year ago

"My legs hurt and it's only been 57k"
Ah yeah sure I know that problem

@FilipRacunica-oj3mc 1 year ago

He was running to that toilet faster than he was running at the start. 😂

@liamallport3361 1 year ago

I think if you wanted to go full goggins you would have swam the river instead of taking the ferry 😂

@MrTheMrLol 11 months ago

bro speedrunning all the running injuries so he doesnt get them later. Thats the 4D chess move

@highdancereef 10 months ago

Incredile achievement. Let's not forget that during ultraruns people run TOGETHER, you see and talk to fellow runners, to your pacers (if you have any), you're part of something. He did this all by himself which is HUGE.