Musik: Iron Maiden

https://www.youtube.com/watch?v=86URGgqONvA

Links:

https://www.businessinsider.com/8-ridiculous-endurance-races-that-will-destroy-your-body-and-mind-2011-8#the-iditarod-3

https://www.runnersworld.com/races-places/g21781996/worlds-hardest-races/

https://en.wikipedia.org/wiki/Canadian_Death_Race

https://en.wikipedia.org/wiki/Spartan_Race

https://www.runnersworld.com/races-places/a26750827/barkley-marathons-faq/

https://en.wikipedia.org/wiki/Barkley_Marathons

https://www.youtube.com/watch?v=NDZdsqbcGTU

https://www.youtube.com/watch?v=UQmoxlUy33A

https://www.youtube.com/watch?v=n-V8x0hQXA4

https://www.youtube.com/watch?v=dRpEE-82bWc

https://de.wikipedia.org/wiki/Self-Transcendence_3100_Mile_Race

https://en.wikipedia.org/wiki/Self-Transcendence_3100_Mile_Race

https://www.youtube.com/watch?v=LoxhhXWT_EU

https://www.youtube.com/watch?v=Ya3gZ2MJxaQ&t=934s