Good point... although Kratochvílová was said to be implicated in some sort of doping scandal. Alot of people say it she had a very unnatural physique and that her record wouldnt be beaten in 100 years. That said, Caster isnt faster than the previous 3 WR's...which is quite interesting... Either doping was rife back then, and now its not, or females are getting slower...
Caster's time is only the 20th fastest run in history by a woman..