← Back to Stories

IOC bans transgender women from female Olympic events via new SRY gene testing rules

2 hours ago5 articles from 2 sources

Consensus Summary

The International Olympic Committee (IOC) has implemented a sweeping policy banning transgender women and athletes with differences in sex development (DSD) from competing in female Olympic events starting with the 2028 Los Angeles Games. The new rules mandate a one-time SRY gene test to determine biological sex, reversing the IOC’s 2021 stance that allowed transgender women to compete if cleared by their federations. Kirsty Coventry, the newly elected IOC president, led this U-turn, citing scientific evidence of male performance advantages—ranging from 10-12% in endurance events to over 100% in explosive power sports—even after hormone treatment. The policy applies only to elite sport and was influenced by athlete surveys showing majority support for stricter female category rules, as well as controversies like the Paris 2024 boxing tournament involving Imane Khelif. Critics, including human rights groups and medical experts, argue the SRY test is unreliable and discriminatory, violating international human rights law and creating a culture of body policing for female athletes. While supporters like the Australian Olympic Committee emphasize fairness and integrity, opponents warn of legal risks, increased harassment, and a step backward in gender equality.

✓ Verified by 2+ sources

Key details reported by multiple sources:

  • The IOC announced new rules banning transgender women and athletes with differences in sex development (DSD) from competing in female Olympic events starting from the 2028 Los Angeles Games.
  • The new policy mandates a one-time SRY gene test (via saliva, cheek swab, or blood) to determine biological sex for female category eligibility at the Olympics, Youth Olympics, and qualifiers.
  • Kirsty Coventry was elected IOC president in March 2024 and has led the reversal of the 2021 IOC Framework on Fairness, Inclusion, and Non-Discrimination, which previously allowed transgender women to compete if cleared by federations.
  • The IOC cites a 10-12% male performance advantage in most running and swimming events, and a greater than 100% advantage in explosive power events (e.g., weightlifting, boxing) for athletes with male puberty, even after hormone treatment.
  • New Zealand’s Laurel Hubbard was the first openly transgender athlete to compete in the Olympics (Tokyo 2021) in a different gender category than assigned at birth.
  • The IOC’s new policy applies only to elite sport and does not affect grassroots or amateur sports.
  • The new rules were developed after a survey of 1,100 athletes, with a majority of female Olympians supporting stricter eligibility rules for the female category.
  • The SRY gene test is described by the IOC as ‘fixed throughout life’ and ‘highly accurate evidence’ of male sex development, based on scientific evidence.

Points of Difference

Details reported by only one source:

ABC News
  • The Australian Olympic Committee (AOC) president Ian Chesterman emphasized the new policy provides ‘clarity for elite female athletes’ and offered support to affected athletes, including counseling and confidentiality guidelines.
  • ABC notes that the AOC contacted member sports to support athletes struggling after the IOC ruling and highlighted that the new policy does not breach Australia’s anti-discrimination laws ‘directly’ but could create a ‘chilling effect’ on participation.
  • ABC quotes Anna Meares (2028 chef de mission) as saying she ‘admires’ Kirsty Coventry’s leadership but also ‘empathises with athletes hurt by the decision’ and frames it as protecting ‘integrity on the Olympic field of play.’
GUARDIAN_1
  • The Guardian reports that the IOC’s 180-degree turn was influenced by the Paris 2024 women’s boxing controversy involving Imane Khelif, whose DSD status was questioned, and that most sports had privately urged the IOC to introduce stricter rules.
  • The Guardian cites Dr Jane Thornton (IOC health director) as stating that ‘a strong consensus’ among surveyed athletes supported the new policy for fairness and safety in the female category.
  • The Guardian highlights that the new policy was developed by a committee that has not publicly shared the scientific data behind it, and that the SRY test is criticized by medical experts as ‘unreliable and reductive.’
  • The Guardian notes that the policy was influenced by US President Donald Trump’s executive order banning transgender athletes from women’s sports in the US, though Kirsty Coventry denied this was the primary driver.
GUARDIAN_2
  • Over 100 human rights, sports, and scientific groups—including the United Nations—criticized the IOC’s new guidelines as ‘a blunt and discriminatory response’ violating international human rights law, per the Guardian.
  • The Guardian quotes Monash University’s Paula Gerber stating the new guidelines contravene the International Covenant on Civil and Political Rights and that binary sex definitions reinforce harmful stereotypes.
  • The Guardian reports that the IOC’s new policy reverses its 2021 Framework, which was informed by extensive consultation and research, and that the new rules could lead to legal challenges at the Court of Arbitration for Sport.
GUARDIAN_3
  • The Guardian emphasizes that the new guidelines disproportionately affect intersex athletes and women of color, who may be targeted due to appearance, and that the policy could lead to mandatory sex testing for all female athletes at grassroots levels if adopted by national governing bodies.

Contradictions

Conflicting information between sources:

  • The Guardian reports that the IOC’s new policy is based on ‘scientific consensus’ about male performance advantages, but medical experts like Dr Ada Cheung (University of Melbourne) state the best available data shows transgender women on hormone therapy are not meaningfully different from cisgender women in key performance measures.
  • The Guardian cites Kirsty Coventry as saying the SRY gene test is ‘unintrusive,’ but multiple medical experts have stated the test is ‘unreliable and reductive’ and not evidence-based.
  • The Guardian notes that the IOC’s new policy was influenced by US President Donald Trump’s executive order, but Kirsty Coventry explicitly denied this was the primary driver, stating it was a ‘priority for me way before Trump came into his second term.’
  • The Guardian reports that the IOC’s new policy could lead to legal challenges at the Court of Arbitration for Sport, while ABC and the Guardian do not mention any immediate legal threats or outcomes beyond potential future disputes.
  • The Guardian highlights that the new policy could create a ‘chilling effect’ on women’s sport participation and policing of girls’ bodies, while ABC frames the AOC’s support as providing ‘clarity’ and ‘fairness’ without explicitly addressing broader societal impacts.

Source Articles

GUARDIAN

From Laurel Hubbard to sex testing in five years: why the Olympics U-turned on transgender rules | Sean Ingle

The IOC’s shift in position on trans women in elite sports is seismic, but new president Kirsty Coventry is reflecting a changed political climate By any measure, it amounts to one of the most astonis...

Yesterday
ABC

AOC backs Olympic transgender rules despite human rights concerns

The Australian Olympic Committee supports new guidelines for transgender participation at the Olympic Games, as human rights experts and LGBTQIA+ advocates raise alarm bells....

Yesterday
GUARDIAN

Human rights experts raise concerns over Olympics transgender women athlete ban

Critics say new IOC guidelines violate fundamental human rights AOC backs new rules but accepts issue is ‘challenging and complex’ Over 100 human rights, sports and scientific groups , including the U...

Yesterday
GUARDIAN

Transgender women athletes banned from female events at Olympics by IOC

DSD athletes also face exclusion from future Olympics IOC says move will protect ‘fairness and safety’ The International Olympic Committee has banned transgender women and DSD athletes from the female...

Yesterday
ABC

Trans women athletes banned from competing in female Olympic events

Under changes announced by the International Olympic Committee, the gender of athletes will be determined by a one-time gene-screening test....

Yesterday