While certain breeds are more commonly seen in harness racing, like Standardbreds and Trotters, any horse that meets the racing regulations can compete. This includes:
* Registered breeds: Standardbreds, Trotters, American Saddlebreds, etc.
* Non-registered breeds: Quarter Horses, Thoroughbreds, Arabians, etc.
* Mixed breeds: Horses with mixed parentage, often referred to as "grade" horses.
Eligibility criteria typically focus on:
* Age: A minimum age requirement, usually around 2 years old.
* Gait: The horse must be able to perform the required gait (trot or pace).
* Health and fitness: Horses must be deemed physically fit and healthy to race.
So, while certain breeds are more common in harness racing due to their specific traits, any horse meeting the requirements can be entered and compete.