Barrel racing
Barrel racing is a rodeo
Rodeo is a competitive sport which arose out of the working practices of cattle herding in Spain, Mexico, and later the United States, Canada, South America and Australia. It was based on the skills required of the working vaqueros and later, cowboys, in what today is the western United States,...

 event in which a horse
The horse is one of two extant subspecies of Equus ferus, or the wild horse. It is a single-hooved mammal belonging to the taxonomic family Equidae. The horse has evolved over the past 45 to 55 million years from a small multi-toed creature into the large, single-toed animal of today...

 and rider attempt to complete a clover-leaf pattern around preset barrel
A barrel or cask is a hollow cylindrical container, traditionally made of vertical wooden staves and bound by wooden or metal hoops. Traditionally, the barrel was a standard size of measure referring to a set capacity or weight of a given commodity. A small barrel is called a keg.For example, a...

s in the fastest time. Though both boys and girls compete at the youth level and men compete in some amateur venues, in collegiate and professional ranks, it is primarily a rodeo event for women. It combines the horse's athletic ability and the horsemanship skills of a rider in order to safely and successfully maneuver a horse through a clover leaf pattern around three barrels (typically three fifty-five gallon metal or plastic drums) placed in a triangle in the center of an arena.

In timed rodeo events, the purpose is to make a run as fast as possible, while the time is being clocked either by an electronic eye, (a device using a laser system to record times), or by an arena attendant or judge who manually takes the time using a keen eye and a flag to let a clocker know when to hit the timer stop; though this last method is more commonly seen in local and non-professional events.

The timer begins when horse and rider cross the start line, and ends when the barrel pattern has been successfully executed and horse and rider cross the finish line.