 Then Mineshaft ran in the $600,000 Grade I Pimlico Special Handicap at "Old Hilltop" in Baltimore, Maryland.A field of nine faced 6-5 favorite Mineshaft and Triple Crown veteran Balto Star, who was sent off at 4-1.When the gate opened, Balto Star was sent to the front and led the field through the first half mile, setting fractions of 23.1 and 46.7 over the sloppy track.