Note: Dean Potter and Graham Hunt were tragically killed in a wing suit accident in Yosemite National Park just 2 weeks after Dean set this FKT. Fly free Dean & Graham!

Brett Maune proposed the challenge ("hard" version):

A couple years ago I ascended the tallest peak in each of the three prominent SoCal mountain ranges (Baldy, San Jacinto, and San Gorgonio) via 'hard' routes. The stats are roughly 22k ft gain and 50 miles in 21 hours 56 min. Details of the route and trip can be found here:

www.summitpost.org/bear-flat-c2c-vivian-creek-socal-triple-crown-the-hard-way/515720

https://en.wikipedia.org/wiki/Ko%CA%BBolau_Range