NEW ORLEANS - When a horse loses at 2-5, people naturally look for explanations, although such conundrums are part of the eternal mystery of horse racing. Skyward Exchange finished a well-beaten third Jan. 15 as the odds-on choice after winning twice in her comeback from an injury. She's back Sunday in the feature race at Fair Grounds, an optional claimer for older fillies and mares at a mile and 40 yards.