The ATP International Series was a series of professional tennis tournaments held internationally as part of the ATP Tour from 2000 to 2008.
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 ATP Challenger Tour is the secondary professional tennis circuit organized by the ATP. The 2010 ATP Challenger Tour calendar comprises 13 top tier Tretorn SERIE+ tournaments, and approximately 150 regular series tournaments, with prize money ranging from $35,000 up to $150,000.
The ATP Challenger Tour was the secondary professional tennis circuit organized by the Association of Tennis Professionals (ATP). The 2011 ATP Challenger Tour calendar comprised 15 top tier Tretorn SERIE+ tournaments, and approximately 150 regular series tournaments, with prize money ranging from $35,000 up to $150,000.
The ATP Challenger Tour was the secondary professional tennis circuit organized by the ATP. The 2012 ATP Challenger Tour calendar comprised 15 top tier Tretorn SERIE+ tournaments, and a total of 148 tournaments, with prize money ranging from $35,000 up to $150,000.
The ATP Challenger Tour, in 2014 was the secondary professional tennis circuit organized by the ATP. The 2014 ATP Challenger Tour calendar comprised 150 tournaments, with prize money ranging from $40,000 up to $220,000, which represented an increase of the minimum prize money from $35,000. It was the 37th edition of challenger tournaments cycle, and 6th under the name of Challenger Tour.
The ATP Challenger Tour, in 2017, was the secondary men's professional tennis circuit organized by the ATP. The 2017 ATP Challenger Tour calendar comprises 155 tournaments, with prize money ranging from $50,000 up to $150,000. It was the 40th edition of the challenger tournaments cycle, and 9th under the name of Challenger Tour.
The ATP Challenger Tour, in 2018, was the secondary professional tennis circuit organized by the ATP. The 2018 ATP Challenger Tour calendar comprised 159 tournaments, with prize money ranging from $50,000 up to $150,000. It was the 41st edition of challenger tournaments cycle, and 10th under the name of Challenger Tour.
The ATP Challenger Series is the second tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 1992 ATP Challenger Series calendar comprised 89 tournaments, with prize money ranging from $25,000 up to $100,000.
The ATP Challenger Series is the second tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 1993 ATP Challenger Series calendar comprised 97 tournaments, with prize money ranging from $25,000 up to $100,000.
The ATP Challenger Series is the second tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 1995 ATP Challenger Series calendar comprised 86 tournaments, with prize money ranging from $25,000 up to $125,000.
The ATP Challenger Series is the second tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 1996 ATP Challenger Series calendar comprised 98 tournaments, with prize money ranging from $25,000 up to $125,000.
The ATP Challenger Series is the second tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 1997 ATP Challenger Series calendar comprised 107 tournaments, with prize money ranging from $25,000 up to $125,000.
The ATP Challenger Series is the second tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 2001 ATP Challenger Series calendar comprised 135 tournaments, with prize money ranging from $25,000 up to $125,000.
The ATP Challenger Series is the second tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 2002 ATP Challenger Series calendar comprised 122 tournaments, with prize money ranging from $25,000 up to $150,000.
The ATP Challenger Series is the second tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 2003 ATP Challenger Series calendar comprised 135 tournaments, with prize money ranging from $25,000 up to $150,000.
The ATP Challenger Series is the second tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 2004 ATP Challenger Series calendar comprised 146 tournaments, with prize money ranging from $25,000 up to $150,000.
The ATP Challenger Series is the second tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 2006 ATP Challenger Series calendar comprised 161 tournaments, with prize money ranging from $25,000 up to $125,000.
The ATP Challenger Series is the second tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 2007 ATP Challenger Series calendar comprised 174 tournaments, with prize money ranging from $25,000 up to $150,000.
The Association of Tennis Professionals (ATP) Challenger Tour in 2023 is the secondary professional tennis circuit organized by the ATP. The 2023 ATP Challenger Tour calendar comprises 94 tournaments, with prize money ranging from $40,000 up to $220,000. It is the 46th edition of challenger tournaments cycle, and 15th under the name of Challenger Tour.
New Caledonia 
Gilles Simon 
Stephen Huss 
Wesley Moodie 
Brazil 
Chile 
Edgardo Massa 
Enzo Artoni 
Ramón Delgado 
Germany 
Jiří Vaněk 
Michal Mertiňák 
United States 
Giovanni Lapentti 
Great Britain 
Vladimir Voltchkov 
Poland 
Alexander Peya 
Serbia 
Dick Norman 
Igor Kunitsyn 
Orest Tereshchuk 
Michael Ryderstedt 
Frédéric Niemeyer 
Sanchai Ratiwatana 
Raemon Sluiter 
Japan 
Vietnam 
Jimmy Wang 
Bosnia and Herzegovina 
Mexico 
Fernando Vicente 
Victor Ioniță 
Janko Tipsarević 
Switzerland 
Irakli Labadze 
Marcos Baghdatis 
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