The International Olympic Committee (IOC) has announced a major policy shift regarding eligibility for women’s events at the Olympic Games, stating that only biological females will be permitted to compete in the category moving forward.
In a statement released Thursday, the IOC confirmed that all athletes seeking to participate in women’s competitions will be required to undergo a one-time Sex Determining Region Y (SRY) gene test. The test is designed to identify the presence of the Y chromosome, typically associated with male biological development.
According to the IOC, the new regulation will not be applied retroactively but will come into full effect at the 2028 Summer Olympics in Los Angeles.
IOC President Kirsty Coventry said the decision was guided by scientific research and medical expertise.
“The scientific evidence is very clear. Male chromosomes give performance advantages in sports that rely on strength, power, or endurance,” Coventry stated. “At the Olympic Games, even the smallest margins can determine victory or defeat. It is therefore essential to maintain fairness and safety in competition.”
The IOC added that all international sports federations must adopt the policy for participation in IOC-sanctioned elite events, including both Summer and Winter Olympic Games.
The move aligns with a similar stance taken by Donald Trump, whose 2025 executive order in the United States restricted transgender athletes from competing in women’s sports.
The decision is expected to spark continued global debate around inclusion, fairness, and the role of science in competitive athletics as preparations intensify for the next Olympic cycle.