Lia Thomas - NCAA Division I national swimming champion.

Thomas began swimming on the men's team at the University of Pennsylvania in 2017.

In the 2018–2019 season she was, when competing in the men's team, ranked 554th in the 200 freestyle, 65th in the 500 freestyle, and 32nd in the 1650 freestyle. In the 2021–2022 season, those ranks are now, when competing in the women's team, fifth in the 200 freestyle, first in the 500 freestyle, and eighth in the 1650 freestyle. According to an archived page of the swimming data website Swimcloud, Thomas was ranked 89th among male college swimmers for that season.

In March 2022, Thomas became the first openly transgender athlete to win an NCAA Division I national championship in any sport, after winning the women's 500-yard freestyle with a time of 4:33.24; Olympic silver medalist Emma Weyant was second with a time 1.75 seconds behind Thomas.

https://en.wikipedia.org/wiki/Lia_Thomas