MIAMI – The Calder stakes program was dealt a severe blow by the American Graded Stakes Committee earlier this week when the track lost Grade 3 status for four of its races in 2011, including the tradition-rich Tropical Park Derby, to be run on New Year’s Day. The Tropical Park Derby for 3-year-olds has served as not only the first derby and first Kentucky Derby prep in the United States each year, but also the first graded stakes race of any kind each year since it became a Grade 2 event in 1983.