sex verification in sports sex verification in sports sex verification in sports (also known as gender verification, or loosely as gender determination or a sex test) occurs because eligibility of athletes to compete is restricted whenever sporting events are limited to a single sex, which is generally the case, as well as when events are limited to mixed-sex teams of defined composition (e.g., most pairs events). practice has varied tremendously over time, across borders and by competitive level. issues have arisen multiple times in the olympic games and other high-profile sporting competitions, for example allegations that certain male athletes attempted to compete as women or that certain female athletes had intersex conditions perceived to give unfair advantage. the topic of sex verification is related to the more recent question of how to treat transgender people in sports. sex verification is not typically conducted on athletes competing in the male category. intersex topics human rights and legal issues compulsory sterilization discrimination human rights reports legal recognition malta declaration medical interventions sex assignment sex characteristics (legal term) yogyakarta principles medicine and biology disorders of sex development genetic diagnosis medical interventions history orchidometer phall-o-meter prader scale quigley scale sexual differentiation more... society and culture endosex (antonym) civil society organizations fictional characters‎ films flag intersex and lgbt literature people religion military us researchers sex verification in sports television history and events history of surgery timeline intersex awareness day intersex day of remembrance international intersex forum rights by country argentina australia canada chile china colombia france germany kenya malta mexico nepal new zealand south africa spain switzerland taiwan uganda united kingdom united states