False FavoriteHorse that is a race favorite despite being outclassed by other competition in the field. Also called an underlay.
FarrierHorseshoer, blacksmith. Also called a "plater."
Fast (track)Footing that is dry, even and resilient.
Fee1) Amount paid to a jockey for riding in a race. 2) The cost of nominating, entering or starting a horse in a stakes race.
FieldThe horses in a race.
Field Horse (or mutuel field)Two or more starters running as a single betting unit (entry), when there are more starters in a race than positions on the totalizator board.
FillyFemale horse four-years-old or younger.
FireA burst of acceleration by a horse in a race. The horse did (didn't) fire when asked.
Firm (turf)A condition of a turf course corresponding to fast on a dirt track.
Flak JacketSimilar to a jackets worn by quarterbacks, the jockey's flak jacket protects the ribs, kidneys and back.