What happens to a horse that performs poorly during a race?

A horse that performs poorly during a race may be placed on the steward's list, which is a critical aspect of maintaining integrity and safety within horse racing. The steward's list is a regulatory tool used by racing officials to identify horses that require further evaluation before they can compete again. When a horse finishes far behind the field or demonstrates unsatisfactory performance, it indicates potential issues that could affect its health or competitive ability.

Being placed on the steward's list means that the horse must pass additional tests or requirements set by race officials before being allowed to race again. This process helps ensure that only horses that are fit and capable of racing at a safe level are permitted to enter competitions, thereby protecting both the horses and the integrity of the sport.

The other options do not accurately reflect the procedures typically followed in horse racing regarding a horse's poor performance. Disqualification, fines, or immediate compulsory racing are not standard responses for performance-related issues.