If you’re scrolling through a rich list of sports stars, you’ll be searching for hours before you stumble upon a jockey. But that doesn’t mean that horse racing is an underfunded sport. In fact it’s quite the opposite. Some of the very richest people on the planet are fanatics of the sport - the world’s billionaires are far more involved than you think. We’ve looked at information based on Forbes’ rich list to bring you the richest people in the horse racing industry and some of them have pockets bursting at the seams!   Kenny Troutt, Winstar Farm, $1.41 Billion   Age: 69 Nationality: American,