3rd-Churchill Downs, $93,000, Msw, 5-26, 2yo, 5f, :59.97, sy, 1 1/4 lengths. LA MARINERA (f, 2, Instilled Regard--Curlin Supreme, by Curlin) is the first winner for her first-crop sire (by Arch) out of 50 foals of racing age. The filly was a runner-up on debut at Keeneland Apr. 26 and she finished in the same position in an off-the-turf maiden at Horseshoe Indy May 14. Taking on the boys as a 10-1 shot here, the bay sat just off of Coming in Hot (Maclean's Music) up the backstretch. The 2-year-old...