Lia Thomas is a national champion.
The transgender Penn swimmer, whose participation in college women’s swimming sparked a national debate, finished the 500-yard freestyle with a 4:33.24 and picked up the victory. According to the University of Pennsylvania, Thomas set a program record with the mark.
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Thomas was about three seconds off Georgia Tech’s pool record, which was set by Leah Smith of Virginia in 2016 with a mark of 4:30.81. Katie Ledecky holds the NCAA record with a 4:24.06 at the national championships.
In this race, Thomas beat out Virginia freshman Emma Weyant by more than one second and Texas freshman Erica Sullivan by at least two. Brooke Forde, who won a silver medal at the Olympics in Tokyo over the summer in the 4x200-meter freestyle, raced for Stanford and finished in fourth with a 4:36.18.
Thomas, a 22-year-old transgender woman, is one of 322 athletes that qualified for the men’s and women’s championships this week after securing several records at the Ivy League Championships last month with wins in the 100, 200 and 500 freestyle events.
Thomas’ dominance in the pool comes amid a heated debate on whether transgender female athletes should be allowed to compete against biological females.
The NCAA updated its transgender participation policy back in January to defer to the guidance of each sport’s governing body. The NCAA announced that its policy would become effective in March, starting with the Division I Women’s Swimming and Diving Championships.
USA Swimming updated its policy shortly after requiring transgender athletes who are competing at an elite level to have small levels of testosterone — half of what Thomas was allowed to compete with — for at least 36 months before being eligible, but the NCAA said weeks later that the Administrative Subcommittee of the Committee on Competitive Safeguards and Medical Aspects of Sports (CMAS) decided that it wouldn’t alter its testosterone guidance, stating that "implementing additional changes at this time could have unfair and potentially detrimental impacts on schools and student-athletes intending to compete in 2022 NCAA women's swimming championships."
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The women’s championships run through Saturday.
Fox News’ Paulina Dedaj contributed to this report.