The artcle is bullshit because the performance of a doped athelete is going to depend on two factors: 1. The athlete's baseline performance (ie would they be f

The artcle is bullshit because the performance of a doped athelete is going to depend on two factors: 1. The athlete's baseline performance (ie would they be fast clean?) 2. How well the athlete's body responds to the effects of doping You cannot say "they were fast doped so they must be fast clean" -- they might just have a unusually positive reaction to EPO.