PTRは、｢スタンダード･メソッド｣を学び、認定を受けたテニスコーチのための世界で最大の組織で、13,000名以上のメンバーが登録しています。

Albania, Antigua and Barbuda, Argentina, Aruba, Australia, Austria, Azerbaijan
Bahamas, Bahrain, Barbados, Belgium, Bermuda, Bolivia, Brazil, Brunei, Bulgaria
Canada, Cayman Islands, Chad, Channel Islands, Chile, China, Colombia, Cook Islands, Costa Rica, Cote d'Ivoire, Croatia, Curaçao, Cyprus, Czech Republic
Denmark, Dominican Republic
Ecuador, England, Estonia, Ethiopia
Finland, France
Germany, Gibraltar, Greece, Guadeloupe, Guam
Haiti, Hong Kong, Hungary
Iceland, India, Iran, Islamic Republic, Ireland, Israel, Italy
Jamaica, Japan
Kazakhstan, Kenya, Kuwait
Laos, Latvia, Lebanon, Liberia, Lithuania, Luxembourg
Malaysia, Maldives, Malta, Mauritius, Mexico, Mongolia, Montenegro, Morocco
Namibia, Nepal, Netherlands, New Zealand, Nigeria, Northern Ireland, Northern Mariana Islands, Norway
Pakistan, Panama, Paraguay, Peru, Philippines, Poland, Portugal, Puerto Rico
Qatar
Romania, Russia, Rwanda
Saint Lucia, Saint Vincent & Gernadine, Saudi Arabia, Scotland, Senegal, Serbia, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Sri Lanka, Suriname, Sweden, Switzerland
Taiwan, Tanzania, Thailand, Togo, Trinidad and Tobago, Turkey
Ukraine, United Arab Emirates, Uruguay, US Virgin Islands, USA, Uzbekistan
Venezuela, Vietnam
Wales