The head of the Enhanced Games on Saturday predicted multiple world records will be "beaten" at this weekend's drug-fueled event, even if the feats will not be officially recognized due to the banned…

Why are the Enhanced Games, taking place in Las Vegas this weekend, so contentious, and how have governing bodies have responded to the event?

More than 40 athletes, most using performance-enhancing drugs, will compete in the Enhanced Games in a competition that seeks to upend sporting norms.