front-runner
A horse whose running style is to attempt to get on or near the lead at the start of the race and to continue there as long as possible.
frozen
A condition of a racetrack where any moisture present is frozen.
full-brother, full-sister
Horses that share the same sire and dam.
furlong
One-eighth of a mile, 220 yards, 660 feet.
futurity
A race for two-year-olds in which the owners make a continuous series of payments over a period of time to keep their horses eligible. Purses for these races vary but can be considerable.
gait
Harness racing: Either a trotting or pacing gait.
Thoroughbred racing: The characteristic footfall pattern of a horse in motion. Thoroughbreds have four natural gaits-walk, trot, canter and gallop. Thoroughbreds compete at a gallop.