One would assume that Webb gets his blood tested often, but the first thing I thought after hearing about how he felt so tired early in the race was, "I wonder if he's got low iron."
For his critics (and I'm not a Webb fan, so save you licking his nuts comments), every one of you would trade your running career for his (even the bad races) in a split second. He's already had a career that the rest of us only dream about. Debates, criticisms, discussions are part of the game, but much of this is just pettiness.