In July 1950, a young Dutch intersex woman was expelled from elite competition by the International Amateur Athletic Federation. It turned out to be the beginning of a dark era in the history of women in sport. Young women were subjected to humiliating examinations and dozens of intersex athletes were suspended, although no fraud was ever uncovered. This book presents a compelling argument against gender verification, showing the pernicious effects that suspension inflicted on the lives of young athletes. Some withdrew from the public eye, lived in solitude, or even committed suicide. Compassionate profiles of these banned athletes highlight the unfair play of gender verification and of their exclusion from competition.