Transgender swimmer Lia Thomas, on Wednesday, faced a significant setback when she lost a legal battle challenging the effective ban on trans women competing at the highest levels of women’s swimming. This decision has dashed her hopes of qualifying for the Summer Olympics in Paris next month.
According to “The Associated Press,” on Wednesday, a panel of three judges from the Court of Arbitration for Sport (CAS) dismissed Thomas’ request for arbitration against the World Aquatics governing body. The court stated in its ruling, “The panel concludes that she lacks standing to challenge the policy and the operational requirements in the framework of the present proceeding.”
Thomas, who rarely engages with the media, shared her Olympic aspirations during an interview with ABC News’ “Good Morning America” in 2022, stating that competing in the Olympics was one of her lifelong goals. However, with the court’s ruling, she will not be able to participate in the upcoming qualifying trials for the Olympics.

In 2022, World Aquatics established rules that banned transgender women who have undergone male puberty from competing in women’s races. They also introduced an “open” category for which transgender athletes would be eligible. Thomas had requested that the sports court in Switzerland overturn these rules, arguing that they were invalid, unlawful, and discriminatory. These rules were put in place several months after Thomas, then a student at the University of Pennsylvania, made history as the first trans woman to win an NCAA swimming championship in 2022.
In response to the court’s decision, Thomas expressed her disappointment through her attorney, stating, “The CAS decision is deeply disappointing. Blanket bans preventing trans women from competing are discriminatory and deprive us of valuable athletic opportunities that are central to our identities.” She further emphasized the need for continued advocacy, adding, “The CAS decision should be seen as a call to action to all trans women athletes to continue to fight for our dignity and human rights.”
World Aquatics welcomed the CAS decision, considering it a significant step forward in their efforts to protect women’s sport. Thomas’ NCAA victory had previously drawn international media attention, placing her at the center of a global debate on whether trans women should be allowed to compete in women’s sports. Her success also made her a frequent target of right-wing media.
One of Thomas’ vocal critics, former University of Kentucky swimmer Riley Gaines, celebrated Thomas’ legal defeat on social media platform X. Gaines, who is also suing the NCAA for allowing Thomas to compete in the 2022 championships, wrote, “This is a victory for women and girls everywhere,” while also misgendering Thomas in her statement.
Athlete Ally, a nonprofit organization advocating for LGBTQ inclusion in sports, condemned the ruling. Hudson Taylor, the founder and executive director of Athlete Ally, expressed his disappointment in a statement, saying, “By dismissing Lia Thomas’ legal challenge against World Aquatics, the CAS has denied her fundamental right to access an effective remedy for acts that violate her human rights. This is a sad day for sports and for anyone who believes that trans athletes should have the opportunity for their experiences of discrimination to be heard and adjudicated like everyone else.”
The CAS did not immediately return a request for comment regarding the ruling.
Thomas’ journey and the ongoing legal battles surrounding the inclusion of transgender athletes in sports highlight the complex and often contentious nature of this issue. While some argue that the inclusion of trans women in women’s sports is a matter of fairness and equality, others contend that it undermines the integrity of women’s sports and creates an uneven playing field.
The decision by CAS is likely to have significant implications for the future of transgender athletes in competitive sports. As the debate continues, it underscores the need for a nuanced and inclusive approach that respects both the rights of transgender athletes and the integrity of women’s sports.
Thomas’ situation also calls attention to broader societal issues surrounding gender identity and the rights of transgender individuals. It serves as a reminder of the ongoing struggle for equality and the importance of ensuring that all athletes, regardless of gender identity, have the opportunity to compete and achieve their dreams.
As Thomas and other transgender athletes continue their fight for inclusion and recognition, the sports world will undoubtedly continue to grapple with these complex issues. The outcome of this legal battle may have closed one door for Thomas, but it also highlights the need for continued advocacy and dialogue to ensure that the rights and dignity of all athletes are upheld.