Flocarline is best known as the first filly to ever win the Preakness Stakes. She did it in a time of 1:444/5 with William Gannon aboard by a half length over Mackey Dwyer and Rightful.
Flocarline was exported to France in 1910.[2] As a broodmare, she foaled stakes winner Master Robert, who placed second to Fair Play in the Jerome Handicap.
There was a 11/16 mile Flocarline Handicap named for her at Pimlico Race Course.