Horse racing is present since many centuries. This game is very dominant in the western countries and is coming to many developing countries too.
We had chariot races many years ago when we were ruled by kings is a perfect example if horse racing. The length of the race court and other aspects differs. It depends on the country where it's being occurred.
To go for a horse racing, you should really have very good stamina and high confident level. its most often played with a "jackpot". Duration of the game differs. There is no fixed time for the race as such. The horses are selected taking in to account many aspects like the skeletal structure of the horse, age, genetics etc. the owner maintains a healthy food habit for the horse. Maintain its stamina a level higher. If the race horse is young, it can suffer injuries more than the matured ones.