Who is the best race horse of all time?
Secretariat by far is the best horse that ever lived.
"Brought down" in horse racing means that the horse was disqualified from the race due to: a) a stewards' inquiry or; b) a jockey lodged an objection and upon review of the race it was determined that the "brought down" horse interfered witht another horse during the course of the race. All wagers placed on the horse that is brought down are forfeited and redistributed to bettors who have the horse that legitimately finished in…
I am sure any type COULD be a racehorse but not all horses are cut out to be one. Most racehorses are quarter horses or thoroughbreds. A quarter horse is the fastest horse but can only run a short distance. A thoroughbred isn't as fast but can run for a larger period of time. I hope I helped out some ;)