You posted up a lot of stats for all different races earlier judo,im not 100% certain,but i'd hazard a guess and say i doubt there's been many Horses who's first Grade 1 was a Gold Cup,i could be wrong though.
I thought you were coming at it from some angle that I hadn't considered and that worried me. I'm going to deal specifically with the issue of Long Run because the rest can fend for themselves:




