The International Tennis Federation (ITF) is the governing body of world tennis, wheelchair tennis, and beach tennis. It was founded in 1913 as the International Lawn Tennis Federation by twelve national tennis associations. As of 2016, there are 211 national and six regional associations that make up the ITF's membership.
The ATP Tour is a worldwide top-tier tennis tour for men organized by the Association of Tennis Professionals. The second-tier tour is the ATP Challenger Tour and the third-tier is the ITF Men's World Tennis Tour. The equivalent women's organisation is the WTA Tour.
The WTA Tier I events are part of the elite tour for professional women's tennis organised by the WTA called the WTA Tour.
The WTA Tier I events are part of the elite tour for professional women's tennis organised by the WTA called the WTA Tour.
The WTA Tier I events are part of the elite tour for professional women's tennis organised by the WTA called the WTA Tour.
The WTA Tier I events are part of the elite tour for professional women's tennis organised by the WTA called the WTA Tour.
The WTA Tier I events are part of the elite tour for professional women's tennis organised by the WTA called the WTA Tour.
The ATP Challenger Tour is the secondary professional tennis circuit organized by the ATP. The 2009 ATP Challenger Tour calendar comprised 20 top tier Tretorn SERIE+ tournaments, and 142 regular series tournaments, with prize money ranging from $25,000 up to $150,000.
The 2012 ITF Women's Circuit was the 2012 edition of the second-tier tour for women's professional tennis. The ITF Women's Circuit is organised by the International Tennis Federation and is a tier below the WTA Tour. The 2012 season consisted of 484 events in 63 countries with prize money ranging from $10,000 up to $100,000.
The 2012 ITF Women's Circuit is the 2012 edition of the second tier tour for women's professional tennis. It is organised by the International Tennis Federation and is a tier below the WTA Tour. The ITF Women's Circuit includes tournaments with prize money ranging from $10,000 up to $100,000. During the months of January to March 2012, 88 tournaments were held.
The 2012 ITF Women's Circuit was the 2012 edition of the second tier tour for women's professional tennis. It is organised by the International Tennis Federation and is a tier below the WTA Tour. The ITF Women's Circuit includes tournaments with prize money ranging from $10,000 up to $100,000.
The 2013 ITF Women's Circuit is the 2013 edition of the second tier tour for women's professional tennis. It is organised by the International Tennis Federation and is a tier below the WTA Tour. The ITF Women's Circuit includes tournaments with prize money ranging from $10,000 up to $100,000.
The 2013 ITF Women's Circuit is the 2013 edition of the second tier tour for women's professional tennis. It is organised by the International Tennis Federation and is a tier below the WTA Tour. The ITF Women's Circuit includes tournaments with prize money ranging from $10,000 up to $100,000.
The 2014 ITF Women's Circuit is the 2014 edition of the second tier tour for women's professional tennis. It is organised by the International Tennis Federation and is a tier below the WTA Tour. The ITF Women's Circuit includes tournaments with prize money ranging from $10,000 up to $100,000.
The 2015 ITF Women's Circuit is the 2015 edition of the second tier tour for women's professional tennis. It is organised by the International Tennis Federation and is a tier below the WTA Tour. The ITF Women's Circuit includes tournaments with prize money ranging from $10,000 up to $100,000.
The 2016 International Tennis Federation (ITF) Women's Circuit is a second-tier tour for women's professional tennis. It is organized by the International Tennis Federation and is a tier below the Women's Tennis Association (WTA) Tour. The ITF Women's Circuit includes tournaments with prize money ranging from $10,000 to $100,000.
The 2017 International Tennis Federation (ITF) Women's Circuit is a second-tier tour for women's professional tennis. It is organized by the International Tennis Federation and is a tier below the Women's Tennis Association (WTA) Tour. The ITF Women's Circuit includes tournaments with prize money ranging from $15,000 to $100,000.
The 2018 International Tennis Federation (ITF) Women's Circuit is a second-tier tour for women's professional tennis. It is organized by the International Tennis Federation and is a tier below the Women's Tennis Association (WTA) Tour. The ITF Women's Circuit includes tournaments with prize money ranging from $15,000 to $100,000.
The 2020 International Tennis Federation (ITF) Women's World Tennis Tour is a second-tier tour for women's professional tennis. It is organized by the International Tennis Federation and is a tier below the Women's Tennis Association (WTA) Tour. The ITF Women's World Tennis Tour includes tournaments with prize money ranging from $15,000 to $100,000. The ITF Women's World Tennis Tour is the product of reforms designed to support talented junior players in their progression to the senior game, and target the prize money effectively at professional tournaments to enable more players to make a living.
The WTA Tier I events are part of the elite tour for professional women's tennis organised by the WTA called the WTA Tour.
Russia
Romania 
United States
Italy
Czech Republic 
France
Japan
Argentina 
Germany
Ukraine 
Brazil 
Australia
Great Britain
Netherlands
Poland 
People's Republic of China 
Austria 
Slovakia 
Spain
South Korea 
Thailand 
Croatia 
Belarus 
Chile 
Switzerland
Hungary 
Canada
Serbia 
Chinese Taipei 
Georgia 
Venezuela 
Slovenia 
Colombia 
Israel 
Indonesia 
South Africa 
Sweden 
Greece 
Belgium
Turkey 
Paraguay 
Finland 
Morocco 
Bosnia and Herzegovina 
Denmark 
Kyrgyzstan 
Norway 
Tunisia 
Uzbekistan 
Estonia 
Portugal 
Bulgaria 
India
Hong Kong 
Luxembourg 
Latvia 
Mexico 
Oman 
Peru 
Liechtenstein 
Montenegro 
Puerto Rico 
Ecuador 
Cuba 
Madagascar 
