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The debate over who may compete in the women’s category at the Olympics reached a new public turning point when two-time Olympic champion Caster Semenya voiced sharp criticism of International Olympic Committee president Kirsty Coventry. Speaking at an event in Cape Town, Semenya said she had expected a different response from Coventry, who, like Semenya, is from southern Africa. The IOC’s recently published 10-page eligibility document tightened access to the female category and immediately prompted reactions from athletes and rights advocates. Semenya, who was assigned female at birth and has higher than typical female testosterone levels, reiterated that genetics cannot be controlled and questioned the basis and authorship of the scientific claims cited by the IOC.
What the IOC policy says and how it will be applied
The IOC framed the policy as a measure to safeguard fairness, safety and integrity in women’s competition and said it will take effect for the Los Angeles Olympics July 2028. The document limits eligibility for any female-category event at Olympic and IOC-sanctioned competitions to what it describes as biological females, determined by a mandatory genetic screen conducted once in an athlete’s career. That screening targets the SRY gene and similar markers; the IOC called the current gene test the most accurate and least intrusive method available. The policy also states it is not retroactive and does not apply to grassroots or recreational programs, while underscoring that access to sport remains a fundamental principle in the Olympic Charter.
Responses from affected athletes and legal context
Reaction to the policy was immediate. Semenya publicly challenged the decision and criticized Coventry by saying leaders must listen rather than merely tick a consultation box. Her remarks came days after the IOC published its policy and follow years of high-profile legal fights over eligibility rules. Semenya and other athletes such as Dutee Chand previously contested sex and testosterone regulations before sports tribunals, and Semenya won a judgment at the European Court of Human Rights in her long-running challenge to track-and-field rules even though those rules remained in place. Legal experts expect the new IOC standard could be challenged at the Court of Arbitration for Sport, where past cases have examined the scientific evidence underpinning eligibility regulations.
Scientific claims and contested advantages
The IOC’s working group described retained physiological advantages from male puberty and cited research estimating performance gaps in several sports. The document referenced differences in strength, power and endurance and quantified average advantages in events such as running, throwing and explosive sports. Critics argue the data, methodology and conclusions require transparent peer review. Semenya and other impacted athletes dispute the blanket application of such findings, particularly when those rules also restrict athletes with differences in sex development (DSD). DSD is used by medical and sporting bodies to describe certain congenital conditions that affect physical sex characteristics, and athletes with those conditions have long been at the center of eligibility debates.
Policy mechanics, screening and potential fallout
Operationally, the IOC expects a one-time genetic screening—via saliva, cheek swab or blood sample—to identify chromosomal markers cited in the policy. The procedure is already used in some sports federations for eligibility checks. While the IOC said it carried out interviews with affected athletes and relied on expert panels, opponents of the policy warn that mandatory gene testing risks privacy and human rights concerns. In addition to possible legal challenges, the ruling raises questions about how international federations will implement the rule, whether national bodies will align their own regulations, and how potentially affected athletes will be supported during appeals or eligibility reviews.
Political and broader reactions
Outside the Olympic movement, political actors and national Olympic committees reacted. Some governments and organizations applauded the move as clarifying the female category ahead of a major Games. Others, including rights advocates, warned that exclusionary measures and compulsory genetic screening could harm athletes and undermine inclusion. The IOC statement reiterated that the policy was not intended to affect entry-level sport and claimed the decision emerged from internal deliberations and a desire for a single, consistent framework rather than patchwork rules across sports.
Where this leaves athletes and the sport
For athletes such as Caster Semenya, the policy is another chapter in a long dispute over eligibility that has had real competitive consequences; Semenya has been unable to race the 800 metres at major championships since 2019 after declining to take medication to lower testosterone under prior rules. The coming months and years are likely to see legal arguments over the scientific basis of the IOC’s approach, operational challenges around gene testing, and further debate about the balance between fairness and inclusion in elite sport. As the Olympic movement prepares for the Los Angeles Olympics July 2028, these questions will remain central to how the female category is defined and defended.