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 the early 1900s in the United States, cars were used instead of horses in the sport of Auto polo. Hobby Horse Polo is using hobby horses instead of ponies. It uses parts of the polo rules but has its own specialities, as e.g. 'punitive sherries'. The Hobby Horse variant started 1998 as a fun sport in south western Germany and lead 2002 to the foundation of the First Kurfürstlich-Kurpfälzisch Polo-Club in Mannheim. In the meantime it gained further interest in other German cities. All tournaments and levels of play and players are organized within and between polo clubs, including membership,