It is increasingly clear that testosterone suppression has little effect on sports performance, compared to the natural biological advantage that males have over females. What surprised me is the size of the advantage: in elite competitions, an advantage as little as 1% could mean the difference between winning big and losing.
A research paper just published last month quantifies the male advantage in a simple but compelling manner: the authors “searched publicly available sports federation databases and/or tournament/competition records to identify sporting metrics in various events and disciplines, and calculated the performance of males relative to females.” The smallest male advantage is 10%.

Perhaps the most shocking table is this next one: 14-15 year old schoolboys perform as well as or better than elite female adult athletes!

As the father of a female high school athlete, I know I’m not the only one who believes it is time for this nonsense to stop. Women fought for decades for the right to have their own sports competitions, and now males are coming in and, not surprisingly, dominating the field. More is at stake than simple records when we allow biological males to compete against females; no one thinks about injuries in team sports due to size and strength differences, and the loss of college scholarships for female high school athletes. My prediction: in a decade or two we’ll see some high school female athletic teams consisting primarily of biological males.
Have you noticed there is no controversy about biological females competing as transgender males in sports competitions against biological males? The reason is simple: transgender male athletes competing against biological males are almost unheard of, due to differences in physical performance between males and females. They are not competitive, so they just don’t compete. This is proof positive that transgender females should be competing against biological males, not biological females.
By the way, are you surprised the paper was published in this day and age? I certainly was. Not surprisingly, it looks like the authors were attacked with a bogus complaint about a supposed conflict of interest. If you’re unfamiliar with conflict of interest statements, most scientific journals require them so that readers can know, for example, that the article you just published touting the effectiveness of a drug was paid for by the drug company, or that you’ve been a long-standing paid consultant for the drug company.
I noticed this because the authors published a correction, which typically only happens when you’ve made a mistake in your article and have to publicly correct it. Here is their correction, it is unbelievable:
After publication of this article, concerns were raised regarding potential undeclared conflicts of interest. In light of this the authors have provided the following statement: EH and TL have given talks and engaged in the mainstream media and academic press regarding the biology of sex and how they have concluded that this should impact sporting categories. All dissemination or engagement, irrespective of the medium, has been guided by their education, disciplinary training, and research findings. The authors assert that this does not constitute a conflict of interest. Rather, it is an essential part of their academic freedom and their obligation to engage, publicly, in such discussions.
You read that correctly: if you think the transgender activist agenda conflicts with basic biological science and try to publish research related to transgenderism, that is a de facto conflict of interest. In other words, only right-minded people can now do research on transgender issues. And leftists claim that conservatives are fascist!