C P,

I'll have a stab that the track conditions that are the worst for favourites winning is a good or fast track.
I know in the UK the best results for favourites are in maiden and 2 year old events on a slow track.
If the stats here are the same and I cannot see why not then that just shows all the crap that is shoved down our throats about which races to bet on are just that CRAP.