The arguments presented in this chapter approaches the use of performance-enhancing substances and practices (doping) from the point of view of Olympic athletes. A practice creates the opportunity to acquire and demonstrate skills; it provides standards of excellence and criteria for judgments of excellent performances or practitioners. Until its recent demise, amateurism had been a part of the modern Olympics since their origins. The stated fundamental aims of the Olympic Movement entail more than the defense of the intrinsic goods of sport. The internal goods are essentially linked to the acquisition and exercise of the skills of that sport in the context of the Olympic Games. For some athletes in some Olympic sports, doping can provide an advantage to users over nonusers. Finally the internal goods of the Olympic Games were shown to be at the heart of the endeavor, to be the things that reward and gratify those who pursue and support excellence in the Olympic Games.