Harness racing horseman Robert Shepherd swept the early double to reach 4,000 driving wins on Thursday (Jun. 22) at Rideau Carleton Raceway. Starting the day on 3,998, Shepherd guided Blockbuster Trade (Sportswriter) to a 1:53.2 victory in the opener. The gelding fought off a challenge around the final turn and held Squadron Seelster (Stephane Pouliot)