You seem to have a problem with Black issues. it is from those attitudes, that the problems arise.
I do not agree that Black people have a physical advantage.
in some sports Tall people have an advantage, in others people who live at high altitudes have an advantage. neither of these are racial characteristics.
Physical characteristics are not exclusively racial.
You are very wrong. there was a documentary about Colin Jackson - "The Making of Me" - where they found he had a higher proportion of fast twitch muscle fibres compared to other sprinters. This was the first time they had tried this experiment, taking a biopsy from his leg muscle. It is no coincidence that ALL the great sprinters are black. It is also no coincidence that there are hardly any black swimmers. There were also black boxers and athletes in US sport nearly 100 years ago - Jersey Joe Walcott, Joe Louis, Jesse Owens, Althea Gibson, Jackie Robinson, Jack Johnson, Wilma Rudolph.
Study: Former sprinter has cheetah-like muscle makeup
A study found that a former world champion sprinter has a high abundance of the rare and powerful super fast-twitch muscle fibers.
www.bsu.edu