[aaaja]

It's because there's not many of them eligible to compete at this level. Fortunately, there is a pipeline of restrictions in place so hardly any of these males filter through.

Firstly, there is the eligibility criteria to compete as women. Up until 2016, when the IOC relaxed the policy to only require these males to undergo testosterone suppression, the rule was that they had to have had the surgery to remove the testicles and reshape the penis into a hole. Only a minority of these males choose to go through with this surgery as it is, so to intersect with the group of males who want to seriously compete in sport was highly unlikely. Testosterone suppression, which not all of these males choose to do anyway, has strict limits of minimum duration and maximum concentration. So this in itself filters out most.

Secondly, no athlete can directly apply to compete in the Olympics, as all entrants have to go through their country's organizing committee. So this limits countries to those who recognize trans identities and who have a committee brazen enough to enter a male who wants to be female in the female category, ahead of actual female athletes.

Thirdly, even if those conditions are met, the athlete must choose to do this knowing that the eyes of the world will be watching and that such an entry into the Olympics will be highly and globally controversial. This filters out all but the most shameless. Note this contrasts with the female athletes who claim transgender identities and enter, uncontroversially, into the category of their sex, of which there have been several over the years.

All this is why almost all of the trans-identifying males who compete, and win, in the female category do so in competitions other than the Olympics. Mostly smaller, regional ones.

It's also why most of the male athletes who've competed at the Olympics in the female category are those with disorders of sex development. The rules are different for these athletes. Though not without controversy either. DSD policy has changed over time too, to be more restrictive. The most recent turning point was after male athletes took gold, silver and bronze in the women's 800m at Rio. They didn't claim trans identities, having been erroneously assigned female on their birth certificates, but competing as if they are female was, and is, similarly problematic.