USTA has a sire statics for 2yr and 3 yr that I look at and you can go back a few years as well. Pathways has the stallion showcase that offers a lot of useful information. I used it as one of a number of tools when buying yearlings. One thing it proves that buying yearlings is such a low % of hitting. I see on Muscle Hill who had 34 100k plus yearling buys last year and so far just 1 made over 50k and 1 over 100k. Still plenty of big races left but you can bet the years of MH money wi now shift to Walner.