having spent much time & effort trying to determine the "class" runner of any given race the best i could come up with was -

a chart for each state (vic,nsw,qld) which ranks races from lowest to highest class & within that sub classes based on the day of the week & prizemoney value of the race.

from there any given race can be quickly analysed based on the runners last few starts.

however they are of little assistance when it comes down to the real factors which influence the outcome of a race - those being -

1. the horse himself (fit & happy?)
2. the pygmy sitting on top (tired & hungry?)
3. luck (good or bad)

develop a formula to rate those & happy day are here!