Polo taken. The official set of rules and rules interpretations are reviewed and published annually by each country's polo association. Most of the smaller associations follow the rules of the Hurlingham Polo Association, the national governing body of the sport of polo in the United Kingdom, and the United States Polo Association. Outdoor or field polo consists of four to eight 7-minute chukkas, between or during which players change mounts. At the end of each 7 minute chukka, play continues for an additional 30 seconds or until a stoppage in play, whichever comes first. There is a four-minute interval between chukkas
Polo rider. Variable lengths of the mallet typically range from to . The term "mallet" is used exclusively in US English; British English prefers the term "polo stick". The ball is struck with the broad sides of the mallet head rather than its round and flat tips. Polo saddles are English-style, close contact, similar to jumping saddles; although most polo saddles lack a flap under the billets. Some players will not use a saddle blanket. The saddle has a flat seat and no knee support; the rider adopting a forward-leaning seat and closed knees dissimilar to a classical dressage seat. A