Gives me an idea of an ultra endurance event... Think "Ironman" of walking. Let's say participants would have two weeks to complete the 587 km course or some part of it and whoever finished first is the Leatherman.
[0] https://en.wikipedia.org/wiki/Ultramarathon
[1] https://en.wikipedia.org/wiki/Dean_Karnazes#Running_highligh...
https://en.wikipedia.org/wiki/Pedestrianism
Crazy things like people walking 1 mile every hour for 1000 hours, grabbing bits of sleep within those hours.