Tanlic, we can discuss Denman and KS form (or others can insult me for doing it) but why do you have to go back so many generations? The thoroughbreds have improved considerably, the training regime etc, unless we've been around at that time bringing in horses like Arkle in the discussion is futile. Also what needs to be considered is back then handicaps were the premier races and so when giving weight away and still win on the bridle thats going to automatically bring your rating up. Nowadays the graded contents won't allow big margin wins with big weight allowances so the rating are normally going to be more stacked. Chasers like KS or SS who breached those barriers are commendable for reaching 190+ ratings in these circumstances. But one could argue that could giving weight away to class horses and still win by a big margin was even harder to achieve but on the flip coin they got that cloud ratings that are unthinkable in modern times.