In the Olympics, it appears trans athletes are still a minority among the group of athletes who are excluded because of sex characteristics. Most of the athletes impacted by the ever-stricter testosterone limits in the Olympics are cis women. Such a league would include cisgender former Olympic athletes who had to undergo forms of HRT in order to qualify.

When discussing trans people in sports, the most salient contexts aren't elite sports championships like the Olympics. "Sports" is also done recreationally and is often considered a normal part of ones childhood upbringing. On the topic of trans people, the question "can my child play this sport with their friends"?