There have been 13,215 Olympic medals awarded to women. Not a single one was won by a trans woman.
That did not stop the US Olympic and Paralympic Committee from changing its rules this week to ban trans women from competing against other women, supposedly in the name of ensuring that "women have a fair and safe competition environment consistent with Executive Order 14201." That executive order is Trump's vile, misgendering "No Men in Women's Sports" proclamation.
Saying trans women make cis women unsafe and they must be segregated out for their protection is exactly the same as saying that bathrooms and teams and housing must be racially segregated for white women's protection. That was the lie by which racist Jim Crow laws were justified. The idea that trans women threaten cis women is just as evil and just as false.
Trans women are not at all overrepresented in women's sports, as bigots would have you believe. They are instead vastly underrepresented. The percentage of college students who identify as trans or nonbinary today is about 5%. The percentage of college athletes who are transfeminine is 0.002%. That means there are over 99% fewer transfeminine people competing in college sports than you would see if they were represented proportionally.
The problem of trans people is sport is not about unfairness to cis people. It is one of extreme discrimination against transfeminine people.