When Lia Thomas touched the wall first at the 2022 NCAA championships, she didn’t just win a title—she set off a chain of policy changes that reshaped women’s collegiate swimming across the country. By July 2025, both the NCAA and the University of Pennsylvania had enacted sweeping bans on transgender athletes in women’s sports.

Age: 26 (born May 1999) ·
Height: 6 ft 1 in (1.85 m) ·
College: University of Pennsylvania ·
NCAA Title: 500‑yard freestyle (2022) ·
First openly trans NCAA D1 champion: Yes

Quick snapshot

1Confirmed facts
  • Lia Thomas is a transgender woman. (The Athletic)
  • She won the 2022 NCAA 500‑yard freestyle (The Athletic).
  • She underwent hormone therapy. (The Athletic)
  • UPenn banned transgender athletes from women’s sports in 2025 (BBC News).
2What’s unclear
  • Exact current relationship status.
  • Whether she plans to pursue professional or Olympic swimming.
  • Future NCAA policy direction.
3Timeline signal
  • May 1999 – Lia Catherine Thomas born. (NPR)
  • 2019 – Began transition and hormone therapy. (NPR)
  • March 2022 – Won NCAA Division I women’s 500‑yard freestyle. (NPR)
  • July 2025 – UPenn bans transgender athletes from women’s teams (NPR).
4What’s next

Six key facts illustrate the timeline of Thomas’s career and the policy changes that followed.

Attribute Value
Full name Lia Catherine Thomas
Date of birth May 1999
Height 6 ft 1 in (1.85 m)
College University of Pennsylvania
NCAA title 500‑yard freestyle (2022)
First openly trans NCAA D1 champion Yes

The pattern: what began as one championship race now defines a national policy reset.

What happened with Lia Thomas?

Lia Thomas now

  • As of 2025, Thomas is no longer competing collegiately but remains active as an advocate and public speaker.
  • She maintains a social media presence, though she has not made public statements about future competitions.

UPenn ban on transgender athletes

  • On July 1, 2025, the University of Pennsylvania agreed in a federal settlement to bar transgender women athletes from women’s sports (BBC News).
  • Penn said it would update swimming records set during the 2021–22 season to indicate who would hold the records under current eligibility guidelines.
  • Penn did not say in its announcement whether Lia Thomas’s records would be erased (BBC News).
  • Some outlets reported that Penn would erase Thomas’s records as part of the settlement (Washington Blade), while others indicated that the agreement included restoring awards to female swimmers who lost them (Washington Examiner).

NCAA policy changes

  • On February 6, 2025, the NCAA changed its transgender participation policy, limiting competition in women’s sports to athletes assigned female at birth (The Athletic).
  • The policy was effective immediately and allows transgender women to practice with women’s teams but not compete in women’s events (Congressional Research Service).
  • Athletes assigned male at birth may still compete on men’s teams if they meet other eligibility requirements (Congressional Research Service).
Why this matters

The NCAA’s February 2025 policy shift, paired with UPenn’s July settlement, created a blueprint that other universities may follow. For transgender athletes, the window for competing in women’s college sports has effectively closed under current rules.

Bottom line: The participation of one swimmer triggered a cascade of policy changes: the NCAA rewrote its eligibility rules in February 2025, and UPenn banned transgender athletes from women’s teams three months later. For transgender college athletes, the path to competition now faces a near‑complete federal and institutional barrier.

What does Lia Thomas identify as?

Lia Thomas birth name

  • Lia Catherine Thomas (born May 1999) is a transgender woman.
  • She began her gender transition while attending the University of Pennsylvania (BBC News).

Was Lia Thomas on hormones?

  • Thomas underwent hormone therapy as part of her transition, starting around 2019 (The Athletic).
  • She met the NCAA’s then‑existing hormone‑level requirements before competing on the women’s team.

Gender identity journey

  • Thomas has publicly stated she identifies as a woman and simply wants to swim competitively.
  • Her transition was supported by the university and the NCAA’s previous policies (CBS News Philadelphia).

Bottom line: Thomas’s identity as a transgender woman is well‑documented, and her hormone therapy timeline aligns with NCAA rules in place at the time. The subsequent rule changes have made the eligibility path she followed no longer available.

Is Lia Thomas in a relationship?

Lia Thomas partner

  • As of 2025, there is no public record of Lia Thomas being married or having a partner.
  • She does not have children.
  • No known public relationships have been confirmed.

Lia Thomas wife / Did Lia Thomas get married?

  • No marriage records or announcements have been reported.
  • Thomas has kept her personal life largely private.

Does Lia Thomas have children?

  • There is no information indicating she has children.
The trade‑off

Public scrutiny of Thomas’s personal life has been intense, but she has chosen to share only limited details. This leaves relationship status and family plans as unresolved topics for curious readers.

How tall is Lia Thomas?

Lia Thomas height

  • Lia Thomas is 6 ft 1 in (1.85 m) tall (Congressional Research Service).
  • Her height is within normal range for elite female swimmers.

Swimming physique impact

  • Height provides reach in the water but is not the sole factor in swimming performance; technique and training are equally critical.

Comparison with Katie Ledecky

  • Katie Ledecky is 6 ft 0 in (1.83 m) tall — only one inch shorter than Thomas.
  • Ledecky holds faster times in nearly every event, including a world record in the 800‑meter freestyle, confirming that height alone does not determine speed.

Bottom line: Thomas’s height is comparable to other top female swimmers. The debate over her performance advantage has centered more on the effects of male‑puberty physiology and hormone levels than on stature.

What does Michael Phelps think about Lia Thomas?

Michael Phelps comments on transgender athletes

  • Michael Phelps has expressed concerns about fairness in women’s sports regarding transgender athletes, calling the situation “complicated” and urging sports organizations to find a fair balance (The Athletic).

Reaction from other swimmers (Riley Gaines)

  • Riley Gaines, who competed against Thomas, has been a vocal critic, stating that it was unfair to cisgender women (BBC News).
  • Gaines has testified before state legislatures and become a prominent advocate for requiring sex‑based eligibility in college sports.

Is Katie Ledecky faster than Lia Thomas?

  • Katie Ledecky has not directly commented but holds collectively faster times in the 200‑, 400‑, 800‑, and 1500‑meter freestyle events.
  • In the 500‑yard freestyle (the event Thomas won at NCAAs), Ledecky’s best time is 4:24.06, while Thomas’s winning time was 4:33.24 — a difference of more than nine seconds.
The catch

While Phelps and Gaines represent high‑profile opposition, neither has specific policy‑making power. The actual decisions have been made by the NCAA and federal agencies, responding to Title IX complaints and executive orders.

“It’s complicated. I think we all want to be inclusive and make sure everybody feels like they have a place to compete, but we also have to make sure it’s fair for everybody.”

— Michael Phelps, in a 2022 interview (The Athletic)

“I don’t believe it’s fair for biological males to compete in women’s sports. The records, the opportunities, the scholarships — they matter, and they should be decided on a level playing field.”

— Riley Gaines, speaking after the 2022 championships (BBC News)

“I am a woman. I have always identified as a woman. I just want to swim and compete like everyone else.”

— Lia Thomas, in a statement to CBS News Philadelphia

Timeline

  • May 1999: Lia Catherine Thomas born.
  • Pre‑2019: Competed on the men’s swimming team at University of Pennsylvania.
  • 2019: Began gender transition and hormone therapy.
  • 2021–2022 season: Joined women’s swim team; broke multiple school records.
  • March 2022: Won NCAA Division I women’s 500‑yard freestyle championship (The Athletic).
  • 2022–2024: Continued swimming but faced increasing policy debate.
  • February 6, 2025: NCAA changed policy, limiting women’s sports to athletes assigned female at birth (Congressional Research Service).
  • July 1, 2025: University of Pennsylvania banned transgender athletes from women’s sports via federal settlement (NPR).

Clarity check

Confirmed facts

  • Lia Thomas is a transgender woman.
  • She won the 2022 NCAA 500‑yard freestyle (The Athletic).
  • She underwent hormone therapy.
  • UPenn banned transgender athletes in 2025 (BBC News).
  • The NCAA changed its transgender policy in February 2025 (The Athletic).
  • Penn agreed to a federal settlement on July 1, 2025 (NPR).

What’s unclear

  • Whether Thomas’s records will be officially erased or modified (Washington Blade reports they will be erased; BBC News notes Penn did not confirm).
  • Thomas’s current relationship status and future competitive plans.
  • Whether the NCAA will face further legal challenges or additional policy revisions.

Summary

What started as one swimmer’s pursuit of a national title has become a definitional moment for women’s collegiate sports. The NCAA, the University of Pennsylvania, and federal agencies have all responded with concrete policy changes that restrict transgender athletes from competing on women’s teams. For transgender student‑athletes, the choice is increasingly clear: either compete under eligibility rules that require assignment at birth, or face a system that effectively excludes them from fair competition. The policy ripple effect of Lia Thomas’s participation has left no corner of college athletics untouched.

Additional sources

transathlete.com, san.com, mgaleg.maryland.gov, advocate.com, nytimes.com

Frequently asked questions

Did Lia Thomas swim in the Olympics?

No. Thomas never qualified for the U.S. Olympic team in either men’s or women’s events.

What records did Lia Thomas break?

She set University of Pennsylvania records in the 200‑yard freestyle and 500‑yard freestyle, and won the 2022 NCAA title in the 500‑yard freestyle (The Athletic).

Is Lia Thomas still swimming?

She is no longer competing collegiately and has not announced plans to pursue professional swimming.

What is the current NCAA policy on transgender athletes?

As of February 6, 2025, athletes assigned female at birth may compete on women’s teams; athletes assigned male at birth may not. Transgender women may practice with women’s teams but cannot compete in women’s events (Congressional Research Service).

Why did UPenn ban transgender athletes?

The ban resulted from a federal civil rights investigation and a settlement with the U.S. Department of Education, announced July 1, 2025 (NPR).

How did Lia Thomas’s hormone therapy affect her performance?

Thomas met the NCAA’s then‑existing hormone‑level requirements. Debate continues over whether prior testosterone exposure confers lasting advantages (BBC News).

What is Lia Thomas’s birth name?

Lia Catherine Thomas.

Where is Lia Thomas now?

She resides in the United States and maintains a public presence as an advocate for transgender rights, though she has not shared specific location or career details.