Trainer Efren Loza Jr. saddles Jakob's Way (#1, ML 4-1) in Thursday's eighth race at Gulfstream Park West, a 7 1/2-furlong claiming race on turf. Since Jan. 1, 2014, Loza is winning at a 39 percent clip when saddling a horse switching from route to sprint, for a return on investment of $3.80.  Check out the Positive ROI report as part of DRF Plus. Sign up for DRF Plus here.