In this provocative exploration of what draws us to sport as participants and spectators, Tom Murray argues that the values and meanings embedded within our games provide the guidance we need to make difficult decisions about fairness and performance-enhancing technologies. Simply saying that using performance-enhancing drugs is against the rules begs essential questions. The people who play and govern sport create the rules; rules can be changed. Technologies such as fiberglass vaulting poles and hinged skates enhance athletes' performance, not just drugs. Why are some technologies accepted in sport while performance-enhancing drugs are forbidden? Would athletes' health be protected better if at least some performance-enhancing drugs were permitted under doctors' supervision? Good Sport reveals what we really value in sport and how the reckless use of biomedical enhancements undermines those values. Implicit in sport's history, rules and practices are values and meanings that provide a sturdy foundation for an ethics of sport that celebrates natural talent and dedication. Those values and meanings are visible in the way each sport adapts to innovations in equipment, tactics and players. They are explicit when the Paralympics must decide how to create level playing fields among athletes with different kinds of impairments, and when sport struggles to be fair to all women when an extraordinary woman athlete emerges who appears to possess a man's hormone profile and muscles. They are threatened when the effort to assure athletes a fair chance to win without doping is subverted by cheating that goes undetected or by corruption, such as Russia's state-supported doping operation. Performance-enhancing drugs undermine the conviction that success in sport should reflect natural talent and the dedication to honing it. In showing the fundamental role of values and meanings, Good Sport shows how we identify not just what we champion in the athletic arena, but more broadly what we value in human achievement.