Turf racing, also known as horse racing, is the fastest equestrian sport which involves two or more horses ridden by jockeys over a set distance for competition. It is one of the most ancient sports and its basic objective is to identify which of the horse is the fastest over a set distance or course. Turf racing varies widely in format and most of the countries have developed their own particular horse racing traditions. Some of the variations are- restricting races to specific breeds, running over different distances, running over obstacles, running in different gaits and running on various track surfaces. While these horses are raced sometimes purely for sport, but a major part of the sport's interest and economic importance lies in gambling associated with it, which in 2008 has generated a worldwide market worth around US$115 billion. The sport is believed to be practiced in civilizations across the world since ancient times and records suggest that it occurred in Ancient Greece, Babylon, Syria, and Egypt. Chariot racing was one of the most famous ancient Greek, Roman and Byzantine sports. Different types of horse racing have evolved from impromptu competitions between riders or drivers