Oh hello -- didn't see this thread until my handle popped up. Thanks for the invite.
It's refreshing to see intelligent posts like "Thoughtsleader" and "Apples to Apples" providing real performance data. I guess "Apples to Apples" was a counter to your cherry-picking.
This will be my first and last post about doping, since it has all been said before, and this thread is about "What makes Kelvin Kiptum so good?"
One of the reasons it is stupid to talk about doping producing fast marathon times is because doping has always existed outside of the high altitude countries in East Africa.
If doping could shave minutes off the marathon time, in an era of supershoes also shaving off minutes, shouldn't we also expect non-East Africans to run faster? Forget 2:01s, 2:02s, 2:03s, and 2:04s -- how about within 4 minutes of Kipchoge's 2:01:09?
If we look at the top-176 all time fastest marathons, we can find Ryan Hall sits at #150, with a wind-aided downhill Boston performance of 2:04:58. Above him in the list, 146 of the performances are from East Africans, one is from a Moroccan (2:04:43), one is from
a Brazilian (2:04:51), and one is from a Japanese (2:04:56). If we go down the list to 2:05:09, we have 26 more East African performances.
What's even more striking is that there are good reasons to think Ryan Hall is clean (grew up at altitude, refused to take testosterone when he was diagnosed as low), that Kengo Suzuki is clean (suspicion of Japan is 0%), and that Daniel do Nascimento is clean (the guy pushes himself so hard, he collapsed in the middle of a race) -- the remaining non-African dopers are slower.
So within 4 minutes, we might have as few as just one non-East African doper suspect, the Moroccan-Bahraini El Hassan El Abbassi, because we are mostly all prejudiced against Moroccans who switch to Bahrain.
But then where are all the other doping Moroccans and Moroccan-Bahrainis? Where are all the Russian, Indian, Chinese, American, Spanish, French, Italian, Dutch, Swedish, Norwegian, marathon dopers?
They are all back in the pack. Most all non-African dopers cannot even run sub-2:05 in the marathon, with the full benefit of doping and super-shoes.
The best answer to what makes Kiptum so good is that first and foremost, he is East African.