Olympic Games to Reintroduce Gender Screening for Female Athletes
The International Olympic Committee (IOC) has announced a significant policy shift, reinstating gender screening to determine eligibility for female competition. This move, effective from the 2028 Los Angeles Games, will limit participation in Olympic women’s sports to biological females, a decision that will also exclude athletes with Differences in Sexual Development (DSD).
This represents a departure from the IOC’s 2021 guidelines, which granted individual sports federations the autonomy to set their own eligibility criteria. The new, unified policy will be applied across all Olympic sports.
The IOC stated in a release: “Eligibility for any female category event at the Olympic Games or any other IOC event, including individual and team sports, is now limited to biological females, determined on the basis of a one‑time SRY gene screening.” This screening will be conducted using samples obtained through a saliva swab, cheek swab, or blood test.
Kirsty Coventry, IOC President, emphasized the scientific basis of the new policy, stating, “The policy we have announced is based on science and has been led by medical experts.” She further elaborated on the rationale, highlighting the competitive nature of the Olympics: “At the Olympic Games even the smallest margins can be the difference between victory and defeat. So it is absolutely clear that it would not be fair for biological males to compete in the female category. In addition, in some sports it would simply not be safe.”
Addressing Potential Conflicts and Broadening Exclusions
The revised policy aims to preempt potential clashes with political figures, such as former US President Donald Trump, who had previously issued an executive order banning transgender athletes from women’s sports. While some sports, including swimming, athletics, cycling, and rowing, had already implemented bans, many others had permitted transgender women to compete in the female category, provided they met specific testosterone level requirements, often through medical intervention.
The new ban extends to athletes with DSD, a rare condition where an individual’s genetic makeup, hormones, and reproductive organs present a mix of male and female characteristics. A prominent example of an athlete with DSD is South African runner Caster Semenya, a two-time Olympic women’s 800m champion who possesses XY chromosomes.
Historical Context and Emerging Concerns
Gender testing has a history within the Olympic Games, having been introduced in 1968 and last utilized at the 1996 Atlanta Olympics before being discontinued. The IOC’s reintroduction of such measures is likely to be met with scrutiny from the scientific community.
Concerns have been raised regarding the scientific evidence supporting the new policy. An article published this month in the British Journal of Sports Medicine noted a lack of “scientific data of acceptable quality regarding sport performance advantage of people with DSDs possessing an SRY gene.” The journal further commented that “Evidence regarding their athletic performance is extremely limited and problematic.”
The Shadow of Recent Controversies
The IOC’s decision comes in the wake of a gender-related controversy that impacted the women’s boxing competition at the 2024 Paris Olympics. The dispute involved Algerian fighter Imane Khelif and Lin Yu-ting of Taiwan, both of whom were barred from the International Boxing Association’s (IBA) 2023 world championships due to failing eligibility tests.
However, the IOC intervened, allowing both athletes to compete in Paris, citing their status as victims of an “arbitrary decision by the IBA.” Both boxers went on to secure gold medals. Lin has since been cleared to compete in the female category under World Boxing, the governing body scheduled to oversee boxing at the 2028 Los Angeles Olympics.
