You can also buy a horse that has a nice racing career, and then study its workout history, races, and pedigree if it has one. And sometimes you can still race that horse to earn your money back. Older geldings are usually cheap. For example, Gintara Lodge is now selling [color=green]Ch. Unsolved Mystery - you can compare his dosage to his racing career. And there are many other horses for sale or for lease. That worked well for me.