Thanks La Mer. It was the "Index" that stumped me. In my original posting the problem of long-gone "glory days" was what I was getting at when I suggested a limited time-span ( I thought 3 months of ACTUAL racing, but maybe that's too little ) for including winnings to be used for an average. I'm also wary of the single "Big Win" which also distorts the average so I drop the BIGGEST payday from the stats. For example some 2yo might have won $100000 in 5 races (ie 20000 average) and suddenly land 250000 for THIRD in the Golden Slipper at 100-1. Immediately it becomes a $60000 average horse, despite not being able to repeat that fluke performance again and theoretically being 3 times "classier" than it was the day before. Now ,can someone explain Chrome Prince's idea of allocating your own prizemoney,please?