This is exactly what I said: yes, lots of black top sporters (although only in specific disciplines), but top sporters only represent a tiny fraction of humanity and are statistically insignificant as a sample group. What is actually significant, is scientific research into the links between race and genetics, and that has conclusively demonstrated, as those links explain (did you even open them?), that race has no genetic implications beyond the skin. So why so many black top runners? See
@Lynty 's post below. (I.e., blame society.)
And yes, this has been done in other threads as well, and always led to this same conclusion when someone bothered to check the science. So I'll leave it at this, thanks.