John Tapp May 7, 2019 Harness Racing, Harness Racing NSW, John Tapp Racing, Sky Racing, Trots DENNIS PICKER - IT’S ALL IN THE GENES John Tapp May 7, 2019 Harness Racing, Harness Racing NSW, John Tapp Racing, Sky Racing, Trots Dennis Picker is one trots trainer who has no intention of getting caught up in the grind of racing all year round. In the last six or seven years Dennis has established a pattern of working a team of twenty horses, including five yearlings