A profile of Allison Tai, who won the Sun Peaks Ultra Beast and Spartan WC Ultra Beast in 2016.
They all have their own special challenges. The short, intense ones let you that burn you never feel in the longer events and require 100% obstacle speed and proficiency. Of course, the World’s Toughest Mudder is probably the hardest. The obstacles there are insane and dong them lap after lap is tough.