Do we like Lia Thomas?
Our score: 8 out of 10. No harmful words or acts of her own turned up, and she speaks up for other trans athletes; the fight over her sport stays contested.
Lia Thomas grew up in Austin, Texas, and swam for the University of Pennsylvania. She started on the men's team, came out to friends, teammates and coaches in her junior year, then joined the women's team in late 2021 after a pandemic gap year. Her line at the time: “I'm a woman, so I belong on the women's team.”
Her 2021-22 season turned her into a national flashpoint. Sixteen Penn women's swimmers signed a letter opposing her competing at the Ivy League championships, and she copped criticism from famous names like Michael Phelps. Years later the Education Department found Penn breached Title IX by letting her compete, and in July 2025 Penn signed a deal to restore records and titles to the women who lost to her and send them apology letters.
Her bid to keep racing at the top level ended in 2024, when the Court of Arbitration for Sport dismissed her challenge to World Aquatics' rules, finding she lacked standing to bring it. World Aquatics called that a step forward in protecting women's sport. Then in June 2026 the US Supreme Court upheld state bans in two other cases, which shows how far the legal tide has gone against her cause.
On the harm test, we found none of her own words or acts aimed at women, migrants, people of colour, public health or the planet. What she says publicly is that athletes themselves should decide where they feel most affirmed, and that trans people have to stick together. Critics such as Riley Gaines say her platform undermines women's sports. Where you land on the fairness fight is a separate argument from whether she has been nasty to anyone, and nothing we read shows that.
The recent stuff is quieter. In October 2025 she told WHYY she swims only occasionally at her local YMCA and described an “aching grief” at not competing. Days later she accepted a Voice of Inspiration award at an LGBTQ+ event in Los Angeles, crediting trans mentors for her strength. Nothing new from her has turned up since.
The good stuff is mostly about showing up for others. She turned up at a trans youth forum and told people to stick together, and she praised her Penn coach as supportive. Former teammates have aired their grievances loudly, mostly through conservative outlets, but we found nothing sourced that points to a pattern of bad behaviour from her. That's honestly the whole record.