Brian Hernandez, Jr. rode three races at Churchill Downs Wednesday. He made it to the winner's circle in race nine, but that wasn't the only excitement of the day for the jockey. Earlier that morning, he and his family posed alongside a bay mare named Unbridledexplosion (Eddington) outside of Barn 46 at Keeneland. Hernandez had ridden the mare in all but three of her 18 career starts. Now, he is her new owner. "This is the first mare my wife and I have purchased on our own," Hernandez said. "We...