Per a post by Sharon a while ago:
"This year anyone could enter Starter Stakes if they so desired. Next year at least one 15 point Q in Chances will be required. SilverStakes will need a minimum of 75 bonus points with at least one 20 point bonus in Regular OR two 15 point bonuses in Regular. SuperStakes will require 100 bonus points with a minimum of two 20 point bonuses in Regular with one of those being with a run index of over 100."
Linda