I did my standard Tiger Mountain conditioning hike today, 5.1 miles, up Adventure and Section Line, down the Nook, etc.
Along the way I saw signs for an upcoming (5/14/22) trail running event, the Tiger Claw:
A check of their website reveals that the trail runners are going to be doing either 25 miles of running up and down a mountain OR 50 miles up and down a mountain. The event starts at 5am and ends at 9 pm.
My personal experience is that, outside of guides on mountains like Rainier, trail runners are the fittest people around. Just try to imagine running – not slowly trudging, like me (an old man) – running for 25 or 50 miles up and down a mountain.
Wowsa!
Track below.