World Athletics, the international governing body for track and field, will formally implement a genetic testing requirement for athletes competing in women's events starting September 1, 2025. This new policy mandates a one-time SRY gene test to verify genetic eligibility, aiming to protect the integrity of women's sports. The test, which can be conducted via a cheek swab or blood sample, will be overseen by member federations.
The decision aligns with perspectives advocating for biological sex as the primary determinant in sports. Evolutionary biologist Colin Wright, in a recent social media post, stated, "You don't get to criticize a policy for sex screening female athletes unless you suggest a better alternative." He emphasized that "Using the SRY gene is an EXTREMELY reliable proxy for sex. Self-ID is the absolute worst," linking to further discussion on the matter.
World Athletics President Sebastian Coe underscored the organization's philosophy, stating, "The protection and the promotion of the integrity of women's sport" is paramount. He added that it is crucial for women entering the sport to believe "there is no biological glass ceiling," a belief the SRY gene test is intended to uphold. A working group spent over a year studying developments in law, science, and sports before recommending the revised eligibility regulations.
The SRY (Sex-determining Region Y) gene is located on the Y chromosome and plays a critical role in male sex determination during embryonic development. This genetic test offers a definitive biological marker, contrasting with policies from other sports organizations, such as the NCAA, which often rely on birth certificates. Advocates for the SRY gene test argue it provides a more robust safeguard against competitive imbalance.
World Athletics is the first major international sports association to mandate such a genetic test for female category eligibility. This move sets a significant precedent in the ongoing global debate surrounding fairness and inclusion in women's sports, potentially influencing similar discussions and policy changes across other athletic disciplines worldwide.