Driver Dexter Dunn and trainer Ake Svandstedt swept the Graduate Series finals for four-year-olds in harness racing action from The Meadowlands on Saturday night (Jul. 8). Superstar mare Jiggy Jog S (Walner) kicked it off with another dominating performance, easily handling the boys in the $230,000 Graduate final for trotters. With regular driver Dunn holding