Horse racing is a popular sport that has been around for centuries. The most common type of horse race is the CENTAUR, which is a seven-letter race involving two horses ridden by a single jockey. STEEPLECHASE is a twelve-letter race that involves horses jumping over obstacles such as fences and ditches. TROT is a four-letter race that involves horses running at a slow, steady pace. Lastly, the DERBY is a five-letter race that is usually held annually and is considered to be one of the most prestigious horse races in the world.