Thomas has a biological advantage.
Went from an ordinary male swimmer to being a 'female' swimmer laps ahead of the competition.
Common sense ruling in my opinion.
Transgender swimmer Lia Thomas out of Olympics after losing legal battle
By Sean Ingle
25 January 2024
THE GUARDIAN

The US swimmer Lia Thomas, who rose to global prominence after becoming the first transgender athlete to win a NCAA college title in March 2022, has lost a legal case against World Aquatics at the court of arbitration for sport – and with it any hopes of making next month’s Paris Olympics.
The 25-year-old also remains barred from swimming in the female category after failing to overturn rules introduced by swimming’s governing body in the summer of 2022, which prohibit anyone who has undergone “any part of male puberty” from the female category.
FULL STORY: https://www.theguardian.com/sport/article/2024/jun/12/transgender-swimmer-lia-thomas-out-of-olympics-after-losing-legal-battle-swimming