Colour Party (#6, ML 5-1) makes her North American debut in Thursday’s third race at Aqueduct, the 1 1/16-mile Memories of Silver Stakes on turf. Trainer Christophe Clement is winning at a 38 percent clip when saddling a horse making its first start in North America, for a return on investment of $2.80. Check out the Positive ROI report as part of DRF Plus. Sign up for DRF Plus here.