Gary Subratie, a trainer who has saddled more than 800 winners in Jamaica, recorded his first U.S. win Saturday at Gulfstream Park. His charge Rogers Park (Kantharos) captured the sixth race, a $12,500 maiden claiming event going 1 1/16 miles on the all-weather surface. Trevor R. James owns the 4-year-old filly, whom Subratie claimed May 18 from Saffie Joseph, Jr. for $12,500. Saturday's win was her second start for Subratie. "I grew up in Jamaica, but I got my license at Calder. I ran a couple races at Calder [in...