dh
Abbreviation for dead heat.
disqualification
Harness racing:Disqualified persons may not act as an official or start or drive a horse in a race. Disqualified horses shall not be allowed to start.
Thoroughbred racing: Change in order of finish by officials for an infraction of the rules.
distaff
A female horse.
distaff race
A race for female horses.
distanced
Horse so far behind the rest of the field of runners that it is out of contact and unable to regain a position of contention.
dogs
Rubber traffic cones (or a wooden barrier) placed at certain distances out from the inner rail, when the track is wet, muddy, soft, yielding or heavy, to prevent horses during the workout period from churning the footing along the rail. Used in the phrase, “The dogs are up,” or simply, “dogs up.”