HALLANDALE BEACH, Fla. – Gemologist and Currency Swap, two of the more highly regarded members of the 2-year-old class of 2011, will make their belated 3-year-old debuts against one another in Friday’s $80,000 allowance feature at Gulfstream Park. The main event, which could ultimately serve as a Kentucky Derby prep for one or both horses, drew a field of only five 3-year-olds and will be decided at one mile.