It is typical/customary for a public trainer to get 10% of the purse monies won by the horses he trains. In a race with a purse of $1 million, the winner typically gets about $600,000, so the trainer will get $60,000.There may be other contractual arrangements between the owner and the trainer.Shug McGaughey, for example, is a private trainer for the Phipps, Claiborne Farm, and a few other selected patrons.o for a $1,000,000 race the winning horse might recieve $550,000-750,000, 10% of which would be $55,000-75,000. Many trainers split this amount with their stable help. Some give 1% of purse money to the groom & exercise rider, others bank all of their purse money and distribute percentages throughout the stable yard.