King has had quite the career, consistently performing well in a variety of races. He's the only Ultra guy I know of who can bounce back and forth from long races to marathons and not lose foot speed.
King posts all of his training to Strava. Here's a look at his training from a random week in January -
He seems to do a lot of very long, slow runs through hilly trails. And once ever week or so, he'll hammer a fast treadmill workout.
What can be taken away from his training? Should we all be running 22 miles on Sundays up and down hills at 8:00 pace?