ATP Challenger Tour tournaments
Europe |
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| Austria | |
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| Belgium | |
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Bosnia and
Herzegovina | |
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| Bulgaria | |
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| Croatia | |
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| Czech Republic | |
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| Denmark | |
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| Finland | |
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| France | |
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| Germany | |
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| Greece | |
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| Hungary | |
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| Lithuania | |
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| Luxembourg | |
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| Ireland | |
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| Italy | |
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| | Netherlands | |
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| North Macedonia | |
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| Poland | |
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| Portugal | |
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| Romania | |
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| Russia | |
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| San Marino | |
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| Serbia | |
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| Slovakia | |
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| Slovenia | |
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| Spain | |
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| Sweden | |
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| Switzerland | |
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| Turkey | |
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| Ukraine | |
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| United Kingdom | |
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Africa |
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| Egypt | |
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| Morocco | |
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| Rwanda | |
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| South Africa | |
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| Tunisia | |
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Asia |
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| China | |
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| Hong Kong | |
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| India | |
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| Israel | |
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| Japan | |
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| Kazakhstan | |
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| Philippines | |
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| Singapore | |
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| South Korea | |
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| Taiwan | |
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| Thailand | |
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| Uzbekistan | |
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| Vietnam | |
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North America |
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| Bermuda | |
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| Canada | |
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| Mexico | |
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| United States | |
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Central America and Caribbean |
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| Costa Rica | |
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| Dominican Republic | |
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| Panama | |
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South America |
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| Argentina | |
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| Brazil | |
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| Chile | |
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| Colombia | |
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| Ecuador | |
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| Paraguay | |
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| Peru | |
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| Uruguay | |
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Lu Yen-hsun
Go Soeda
Dmitry Tursunov
Lukáš Rosol
Kamil Čapkovič 
Amir Weintraub
Scott Lipsky 
Sanchai Ratiwatana 
