It is not common for all the same horses to be in all 3 races. The Derby winner is typically in the Preakness since they are going for a Triple Crown. Several other horses may come over, but there are mainly newcomers in each race. Trainers have multiple horses that practice for specific races, thus giving them the best odds of winning.
It’s also one of the premier horse racing events for punters, with millions of American Dollars wagered every year. […]