Daily DoubleType of wager calling for the selection of winners of two consecutive races, usually the first and second or the last two.
Daily Racing FormA daily newspaper containing news, past performance data and handicapping information.
DamThe female parent of a foal.
Dark Bay or BrownA horse color that ranges from brown with areas of tan on the shoulders, head and flanks, to a dark brown, with tan areas seen only in the flanks and/or muzzle. The mane, tail and lower portions of the legs are always black unless white markings are present.
Dead HeatTwo or more horses finishing a race in a tie.
Deep Stretch A position very close to the finish line in race.
DerbyA stakes event for three-year-olds.
DisqualificationChange in order of finish by officials for an infraction of the rules.
DistaffReferring to races for female horses.
DistancedHorse so far behind the rest of the field of runners that it is out of contact and unable to regain a position of contention.