I don't think there is any rule of thumb-- horses either run on a surface or don't, and the pedigree info may be of use, but only in general terms, not specific ones.

On the question of dirt and grass numbers being on the same scale-- at some point when all the other programming smoke clears, we will run a study on this question. The intent (and I believe the reality) is that the scales are the same. The number it takes to win the various claiming levels is different, because the claiming scale for grass is inflated (very few cheap claimers). There is also the question of grass pedigrees going to Europe. So we will do some kind of computer run based on the figures on a horse by horse basis, if we can figure out the right questions to ask, and make an adjustment if necessary.



TGJB