I guess I'll just end this now.....
Your argument
there are real physical differences between different races of people.
AKA I think black people are born to run faster
lets take a look at the articles you posted, I'll just grab the first few lines from each one, good thing you actually read these....
Fuel economy
Just as
more aerodynamic cars get better gas mileage, the KENYAN build helps
explain their fuel efficiency. A recent British TV documentary
described the Kalenjin as possessing "birdlike legs, very long levers
that are very, very thin [on which they] bounce and skip" along.
KENYAN runners also have a
higher concentration of an enzyme in skeletal muscle that spurs high
lactate turnover and low lactate production.
And heres the part where you say BUT WAIT THIS LAST PART SAYS....and I say well lets look at the facts shall we? To argue this you would post this tid bit up
A
team led by exercise physiologist Adele Weston of the University of
Sydney, Australia, compared BLACK South Africans, whose running
strengths are similar to those of KENYANS, with WHITE runners.As with the KENYANS, the BLACK South African
runners accumulated less lactate and had higher levels of key muscle
enzymes.
So this is the part you say HA I TOLD YOU! And you would be wrong. There is no info here at all, white runners from where? Russia? Great they run a TON there not even from the same continent! Also there is no specific numbers here, they could be .0000000000000000000000001% better but you wouldn't even know. And to completely reverse this and I'm not going to site this but on the science channel I was watching a show on UFC fighters, Randy Couture actually reversed the lactic affect and had more stamina. HE LITERALLY DEFIED SCIENCE, so check that show out. I don't see any KENYANS or BLACK South Africans doing that.
Next arguement
 A little more twitchy
Whereas
East Africans dominate long-distance running, West Africans have surged
to the fore in short-distance events. LITTLE RESEARCH has been done on
West Africans, but there's powerful CIRCUMSTANTIAL evidence for some
physical advantages
Well, it looks like you have no solid facts here, great one to pick! I LOVE circumstantial evidence!
Various
studies have shown that West African athletes have denser bones, less
body fat, narrower hips, thicker thighs, longer legs, and lighter
calves than whites. But the differences between East and West Africans
are even more striking. The fabled Kenyan runners are small, thin, and
tend to weigh between 50 and 60 kilograms, whereas West African
athletes are taller and a good 30 kilograms heavier, says Timothy
Noakes, a prominent exercise physiologist and researcher at the
University of Cape Town.
Your argument is....
 FULL OF HOLES IT SAYS RIGHT HERE THIS HAS EVERYTHING TO DO WITH WHERE YOU COME FROM
Running ACEs
Bouchard's group, for example, is collecting DNA samples
from 400 runners and other top endurance athletes from the United
States and Europe, but he says they haven't spotted any running genes
yet.
NO HARD FACTS
Kenyans are faster because of the sole fact they live in KENYA, not once does it say black people are mad fast yo!
Well, what have we learned here today children? Read things before you start posting random facts on the internet that have not been proven. You can't prove circumstance
Now, please shut up