Dave Castro Challenges World's 'fittest' to Beat Crossfit Champion Jason Khalipa

Outside Magazine calls triathlete Mark Allen the world's fittest man. Crossfit says that your fitness is determined by your performance in these ten metrics: cardiovascular/respiratory endurance, stamina, strength, flexibility, power, coordination, agility, balance, and accuracy. You'd be hard-pressed to say a triathlete could excel in any competition of power or strength.

Jason Khalipa was the men's champion at the 2008 Crossfit Games. He is, by this definition, the world's fittest athlete. Dave Castro is willing to bet US$5K that this is the case...

Come on, endurance guys, let's see what you got!