In a landmark policy reversal, the International Olympic Committee (IOC) has announced the reinstatement of mandatory gender verification testing for all female athletes, effectively limiting participation in Olympic women’s sports to biological females. The new regulation, which will be implemented for the 2028 Los Angeles Games, marks a significant departure from the 2021 framework that delegated eligibility decisions to individual sports federations.
The updated policy mandates a one-time SRY gene screening—conducted via saliva sample, cheek swab, or blood test—to determine eligibility for all female category events at IOC-sanctioned competitions. This scientific approach will exclude transgender women and athletes with Differences in Sexual Development (DSD) from women’s Olympic events.
IOC President Kirsty Coventry defended the decision as scientifically grounded and medically endorsed. “At the Olympic Games, even the smallest margins can determine victory or defeat,” Coventry stated. “It would be fundamentally unfair and potentially unsafe for biological males to compete in the female category across certain sports.”
The policy shift follows controversy during the 2024 Paris Olympics women’s boxing competition involving Algerian boxer Imane Khelif and Taiwan’s Lin Yu-ting. Both athletes had been excluded from the 2023 International Boxing Association World Championships due to eligibility concerns but were permitted to compete in Paris after the IOC criticized the IBA’s decision as “sudden and arbitrary.” Both athletes ultimately won gold medals in their respective weight classes.
This reinstatement of biological verification testing revives a practice first introduced at the 1968 Olympics and last used at the 1996 Atlanta Games before being abandoned due to scientific community criticism. The move represents one of the most significant changes to Olympic eligibility standards in decades and will have profound implications for international sports governance.