The International Olympic Committee (IOC) has announced a sweeping policy change that will bar transgender women from competing in women’s events at the 2028 Summer Olympics in Los Angeles, introducing mandatory genetic testing for all female athletes in a move that is already drawing global scrutiny.
Under the new rules, eligibility for women’s Olympic events will be limited to athletes classified as biologically female, determined through a one-time screening for the SRY gene, a genetic marker typically associated with male sex development. The policy will apply not only to the Olympics but also to qualifying events and the Youth Games.
IOC President Kirsty Coventry said the decision was rooted in ensuring fairness and safety in elite competition, arguing that even small physical advantages can impact outcomes at the highest levels of sport. Supporters of the policy, including some athletic organizations and political leaders, say it provides a clear and consistent global standard after years of fragmented rules across different sports federations.
However, the announcement has been met with immediate backlash from human rights groups, medical experts, and LGBTQ+ advocates, who argue the policy is discriminatory and not supported by current science. More than 100 organizations have condemned the move, warning that it could violate athletes’ rights to privacy, bodily autonomy, and equal participation.
Critics also point to concerns about the reliability of genetic testing itself. The SRY-based screening method has historically been controversial, with past Olympic sex verification policies criticized for producing inaccurate results and disproportionately targeting women with intersex traits or differences in sex development. Some experts argue the return to genetic testing represents a step backward after decades of moving away from such practices.
The new IOC framework marks a significant shift from its 2021 guidelines, which allowed individual sports to set their own inclusion policies based on evolving scientific evidence. Instead, the updated rule establishes a universal standard across Olympic competition, effectively ending transgender women’s participation in the female category at the Games.
The policy does not apply retroactively and does not impact recreational or grassroots sports. Athletes who do not meet eligibility requirements for women’s events may still compete in men’s or open categories, according to the IOC.
The decision also arrives amid broader political pressure, particularly from the United States, where federal policies have increasingly targeted transgender participation in sports. With Los Angeles set to host the 2028 Games, the intersection of international sport and domestic policy is expected to remain a flashpoint in the years ahead.
As preparations for the Olympics continue, the debate over inclusion, fairness, and the role of science in sport is far from settled.
