There are hundreds of undetectable doping products that are currently available; the black market in doping extends to billions of Euros - it is a huge industry. Very few dopers are caught. We know that. WADA knows that. Now you might ask yourself, how would a clean athlete in any sport (because it is in all sports) be better (and in Kipchoge's case, way better) than doped athletes at the very top of the sport? At the top, clean still beats doped? Really? Do you think doping is confined to mediocrities and recreational athletes, when elites and professionals have so much more at stake? What is the level of athlete in Kenya ( and I'm not saying that problem is confined to Kenya) that is all-too regularly being busted? They are elites. Over the years, I have seen too many top sportsmen and record-breakers across the board who turned out to be dopers. I accept that, unfortunately, it simply goes hand-in-hand with modern sport. But fans - like you - don't wish to know that.
True, true, true, all true. BUT. If you think about it even more rationally, since there are potentially thousands of doping products, how much are you going to believe in the PED concept?
BTW did I mention that Lance Armstrong's power outputs have been massively exaggerated to fit the PED concept (construct)?