Lia Thomas challenges World Aquatics' policy on transgender athletes before Olympic court: report

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Former University of Pennsylvania swimmer Lia Thomas, who became the first known transgender athlete to win an NCAA Division I title, is reportedly challenging World Aquatics in court in the hope of overturning its policy essentially banning transgender athletes from women’s sports. 

Thomas, who has not swum competitively since winning the women’s 500-yard freestyle event in 2022, has asked the Court of Arbitration for Sport (CAS) in Switzerland to overturn the sports governing body’s latest policy, which essentially banned biological males from competing in women’s elite events if they have undergone "any part of male puberty," The Telegraph reported Friday. 

University of Pennsylvania swimmer Lia Thomas enters for the 200 Freestyle final during the NCAA Swimming and Diving Championships at the McAuley Aquatic Center in Atlanta on March 18, 2022. (Rich von Biberstein/Icon Sportswire via Getty Images)

According to the report, Thomas hired Canadian law firm Tyr and first approached CAS in September. The report also noted that World Aquatics asked the court to toss the case as the current policy does not apply to Thomas, who has not competed since 2022. 

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Carlos Sayao, Thomas’ lawyer, told the outlet that the current ban is "discriminatory."

"Lia has now had the door closed to her in terms of her future ability to practice her sport and compete at the highest level," he said. 

"She’s bringing the case for herself and other trans women to ensure that any rules for trans women’s participation in sport are fair, proportionate and grounded in human rights and in science."

Lia Thomas