In time I will put up the charts that indicate horses abilities, what is considered raceable, what is considered top class and all in between.
However, I will not do it now as these charts while useful, especially for the new player can be detrimental.
They often create a divide between horses and stables who then refuse to run horses that do not make this so called grade.
I encourage you to create your own standards, develop you own charts and run what you see fit.
Addittionally, horses can have poor training times but perform to much higher standards on the track.