it’s one of the most complex and sensitive subjects in the World of Sports sex eligibility tests for women’s events it’s erupted at the Paris Olympics with an intense focus on women’s boxing and two athletes in particular Iman khif from Algeria and Lin yuting from Taiwan it’s all exposing how governing bodies of different sports decide who is eligible in women’s events the governing bodies of track and field and swimming have spent years drafting eligibility rules that they say balance fairness inclusion and safety they’ve grown in increasingly strict over time and have risked exposing athletes to humiliation and abuse the emphasis has been on athletes assigned female at Birth and identifying as women with differences of sex development including levels of natural testosterone higher than the typical female range Sports officials say that gives them an unfair advantage over other women in sports but the science is inconclusive