Arabians are not used for harness racing in the US, only Standardbred horses are used for harness racing in the US.
This is the sport of Harness Racing.
The gaits used by harness racing horses is pacer and trotter
Roman chariot racing was the great, great, grandfather of our modern day harness racing and auto racing. The connection with harness racing is obvious, while the auto racing incorporates the speed and touch of danger that the ancient chariot races held.
Thoroughbreds are often what are thought of most when thinking about racing, but there are racing for other horses like standardbreds, which are used for trotting or pacing races, quarter horse races that go over a quarter of a mile, Arabian racing, appaloosa racing, even mule racing! Many breeds are used for racing.
In the UK there are not any sports I know of that are like Horse Racing. In the USA, harness racing is similar to Horse Racing, and the races are ran on sand tracks.
Camel racing happens on the Arabian peninsula in countries like Qatar and Dubai.
If you mean Chicago, there are multiple races held annually in the city itself. There's the Chicago marathon, a triathelon, and several charity races. In the surrounding suburbs there are horse races, both harness and flat and auto racing.
Gladiator fights could be loosely compared to our boxing or full contact karate. Chariot racing could be compared to our harness racing, and loosely compared to auto racing.
Camel racing usually happens on the Arabian peninsula in some countries for example Dubai(UAE), Qatar.
An Arabian is a breed of horse but it was the first breed of horse every horse has a little bit of Arabian in it so if you say that Secretariat was a FULL throughbred that would be wrong he would have a little bit of Arabian in him
The stamina of an Arabian is often used in endurance races.
There are different kinds of racing. The most common is Thoroughbred racing, which of course is what Thoroughbreds are bred for. There are trotters and the breed of horse is the Standardbred. Steeplechasing needs no specific breed but is usually Thoroughbred or Thoroughbred cross. Then different breeds have their own racing, AQHA, APHA,ApHA, Arabian.