is the world's highest, at approximately . The governing body of polo in Pakistan is the Pakistan Polo Association. There are more than twenty-one polo clubs in Pakistan and over forty polo championships held all over the country every year. Pakistan has qualified for the preliminary rounds of the World Polo Championship three times. Pakistan's Hissam Ali Haider is the highest capped played in the Asian circuit. He has played for Cartier in the St. Moritz Snow Polo World Cup and the Commonwealth team in the Royal Salute Coronation Cup, both of which were won by his team. United Kingdom The governing body in the United Kingdom is the Hurlingham Polo Association, dating from 1875, which amalgamated with the County Polo Association in 1949. The UK Armed Forces Polo Association oversees the sport in the three armed services. United States The United States Polo Association (USPA) is the governing body for polo in the U.S. The U.S. is the only country that has separate women's polo, run by the United States Women's Polo Federation. Variants and related sports These variants are considered sports separate from standard polo because of the differences in the composition of teams, equipment, rules, game facilities, and so on. Variant forms of arena polo include beach polo, played in many countries between teams of three riders on a sand surface, and cowboy polo, played almost exclusively in the western United States by teams of five riders on a dirt surface. Another modern variant is snow polo, which is played on compacted snow on flat ground or a frozen lake. The format of snow polo varies depending on the space available. Each team generally consists of three players and a bright coloured light plastic ball is preferred. Snow polo is not the same sport as ice polo, which was popular in the US in the late 1890s. That sport resembled ice hockey and bandy but died out entirely in favour of the Canadian ice hockey rules. Water polo shares a name with polo, but more closely resembles handball. , the polo variety discussed above, is arguably a version of polo though it can also be seen as the precursor of modern outdoor polo. Variants that are related but clearly diverge from the polo format include: Cowboy polo uses rules similar to regular polo, but riders compete with western saddles, usually in a smaller arena, using an inflatable