National Geographic:

Renowned rock climber Alex Honnold on Saturday became the first person to scale the iconic nearly 3,000-foot granite wall known as El Capitan without using ropes or other safety gear, completing what may be the greatest feat of pure rock climbing in the history of the sport.

He ascended the peak in 3 hours, 56 minutes, taking the final moderate pitch at a near run.

I’ve been an admirer of this guy for years, even if what he does utterly terrifies me. This is an incredible feat. I don’t know I could run 3,000ft on flat ground in under four hours.