SALT LAKE CITY -- WHY!!??
That's the question that comes to my mind when I hear about 100 mile runs.
Any running race longer than a marathon (26.2 miles) is considered an ultra run or an ultra race.
While it sounds downright insane to a lot of people, it's a genuine phenomenon with races through deserts, over mountains or just around and around the same track or city block.
And if you're like me, maybe there's a corner of your mind where you're intrigued with the idea of learning how far you can really go.
Adharanand Finn tried, and found out, and he shares his story.