Does anybody know how strict are the Anti-Doping controls at the Olympics? I've tried to google it, but I'm not getting to much information. For example, are athletes randomly tested 365 days a year, like in the UFC? Do they test blood more than urine? Do the other events, where the athletes participate during the rest of the Olympiad, have the same strict Anti-Doping controls? From what I've learned watching MMA, it seems to me that if they do not have random drug tests throughout the whole 4 year period before the Olympics, chances are they are all taking something.