Hi JD, you sure hit it on the head. What you said corresponds to what J. Phillipe Rushton said in his book, Race, Evolution and Behavior. Check it out if you haven't already read it. It's like everything is on a continuum with blacks on one end, Asians on the other and whites in the middle. That's why an Asian winning a sprint related event is a major upset. The studiesRushton reviewed and conductedshowed that blacks have the highest self esteem, Asians the lowest, whites in the middle. Blacks have the highest sex drive, Asians lowest, whites middle. And Asians have the highest intelligence, blacks lowest, whites middle. Blacks produce more children, but more of them die. Asians have the lowest infant mortality rates, blacks highest. Black countries have the highest crime rates, Asians lowest, whites middle.
Of course the hurdles do present variables that require more than just speed and quickness. It seems Asians do excel at events requiring high levels of skill and technique.