racing secretary
Official who drafts conditions of races and assigns weights for handicap events.
rail
The barrier on either side of the racing strip. Sometimes referred to as the “fence.”
rail runner
Horse that prefers to run next to the inside rail.
rattle
Used in the expression, “He likes to hear his feet rattle,” a horse that likes a firm turf course.
re-entered
The reason that the horse was scratched out of the race was that he was either a) entered in another race on that day, either at the same track or another track and opted to race in the other race OR b) was scratched out of this race to run in another race in the next few days.
receiving barn
Structure used by horses shipping in for a race who do not have a stall at that racetrack.