The 2003 ITF Men's Circuit was the 2003 edition of the third-tier tour for men's professional tennis. It was organised by the International Tennis Federation and is a tier below the ATP Challenger Tour. The ITF Men's Circuit included satellite events and 336 'Futures' tournaments played year round across six continents, with prize money ranging from $10,000 to $15,000.

Futures events $15,000 tournaments $10,000 tournaments

January Tournament Date City Surface Singles champions Doubles championsEl Salvador F1 Futures$10,000January 6San SalvadorEl SalvadorClay Juan Pablo Brzezicki Benjamin Cassaigne Valentin SanonFrance F1 Futures$10,000January 6GrasseFranceClay (i) Xavier Pujo Nicolas Mahut Édouard Roger-VasselinIndia F1 Futures$10,000January 6LucknowIndiaGrass Todor Enev Peter Handoyo SuwandiGermany F1A Futures$10,000January 6OberschleißheimGermanyHard (i) Tobias Summerer Mariusz Fyrstenberg Łukasz KubotIndia F2 Futures$10,000January 13New DelhiIndiaCarpet Dmitry Vlasov Mustafa Ghouse Vishal UppalUSA F1 Futures$10,000January 13TampaUSAHard Frank Dancevic Frank Dancevic Simon LaroseFrance F2 Futures$10,000January 13AngersFranceClay (i) Óscar Serrano Nicolas Mahut Édouard Roger-VasselinEl Salvador F2 Futures$10,000January 13La LibertadEl SalvadorHard Alejandro Falla Juan Pablo Brzezicki Bruno SoaresGermany F1B Futures$10,000January 13BiberachGermanyHard (i) Roko Karanušić Daniel Elsner Philipp PetzschnerIndia F3 Futures$10,000January 20JorhatIndiaClay Orest Tereshchuk Mustafa Ghouse Ajay RamaswamiUSA F2 Futures$10,000January 20KissimmeeUSAHard Matías Boeker Ignacio Hirigoyen Tripp PhillipsFrance F3 Futures$15,000January 20DeauvilleFranceClay (i) Nicolas Mahut Óscar Hernández Óscar SerranoGreat Britain F1 Futures$15,000January 20GlasgowGreat BritainCarpet (i) Wesley Moodie Edwin Kempes Peter WesselsJamaica F1 Futures$15,000January 20Montego BayJamaicaHard Nicolás Todero Carlos Berlocq Cristian VillagránGuatemala F1 Futures$10,000January 20GuatemalaGuatemalaHard Bruno Soares Víctor Estrella Burgos Jhonson GarcíaGermany F1C Futures$10,000January 20OberschleißheimGermanyCarpet (i) Andreas Seppi Michal Mertiňák Igor ZelenayGreat Britain F2 Futures$15,000January 27NottinghamGreat BritainCarpet (i) Wesley Moodie Mark Hilton Andy RamUSA F3 Futures$10,000January 27AventuraUSAHard Fred Hemmes Tripp Phillips Ryan SachireFrance F4 Futures$10,000January 27FeucherollesFranceHard (i) Marc Gicquel Marc Gicquel Nicolas MahutJamaica F2 Futures$15,000January 27Montego BayJamaicaHard Jean-Julien Rojer Carlos Berlocq Andres Dellatorre

February Tournament Date City Surface Singles champions Doubles championsFrance F5 Futures$10,000February 3BressuireFranceHard (i) Jérôme Haehnel Josh Goffi Travis ParrottSpain F1 Futures$10,000February 3MurciaSpainHard Salvador Navarro Salvador Navarro Santiago VenturaPortugal F1 Futures$10,000February 3EspinhoPortugalClay Mike Scheidweiler Christopher Kas Mike ScheidweilerCroatia F1 Futures$15,000February 10ZagrebCroatiaHard (i) Tomáš Cakl Marco Chiudinelli Igor GaudiGreat Britain F3 Futures$15,000February 10SouthamptonGreat BritainHard (i) Richard Bloomfield Jonathan Marray David SherwoodSpain F2 Futures$10,000February 10AlgezaresSpainClay Salvador Navarro Salvador Navarro Gabriel Trujillo SolerPortugal F2 Futures$10,000February 10EspinhoPortugalClay Jean-Baptiste Perlant Michal Mertiňák Marco MirneggBrazil F1 Futures$15,000February 10São PauloBrazilClay Francisco Costa Thiago Alves Bruno SoaresUSA F4 Futures$15,000February 17BronwsvilleUSAHard Andrew Ilie Tripp Phillips Ryan SachireGreat Britain F4 Futures$15,000February 17RedbridgeGreat BritainHard (i) Michael Joyce Josh Goffi Travis ParrottSpain F3 Futures$10,000February 17LorcaSpainClay Francisco Fogués Salvador Navarro Gabriel Trujillo SolerPortugal F3 Futures$10,000February 17EspinhoPortugalClay Michal Mertiňák Michal Mertiňák Marco MirneggNigeria F1 Futures$15,000February 17Benin CityNigeriaHard Arnaud Segodo Walid Jallali Malek JaziriBrazil F2 Futures$15,000February 17GoiâniaBrazilHard Francisco Costa Pedro Braga Kepler OrellanaCroatia F2 Futures$15,000February 17ZagrebCroatia Roko Karanušić Ivan Cinkus Andrej KračmanUSA F5 Futures$15,000February 24HarlingenUSAHard Huntley Montgomery Raven Klaasen Huntley MontgomeryNew Zealand F1 Futures$10,000February 24BlenheimNew ZealandHard Ivo Minář Stéphane Bohli Jun KatoSpain F4 Futures$10,000February 24CartagenaSpainClay Iván Navarro Miles Maclagan Stéphane RobertNigeria F2 Futures$15,000February 24BeninNigeriaHard Arnaud Segodo Xavier Audouy Claude N'GoranPortugal F4 Futures$10,000February 24LisbonPortugalClay Juan Pablo Brzezicki Juan Pablo Brzezicki Diego Junqueira

March Tournament Date City Surface Singles champions Doubles championsNew Zealand F2 Futures$10,000March 3ChristchurchNew ZealandHard Jun Kato Stéphane Bohli Jun KatoNew Zealand F3 Futures$10,000March 10North ShoreNew ZealandHard Dirk Stegmann Johan Du Randt Wesley WhitehouseFrance F6 Futures$15,000March 10LilleFranceHard (i) Stefano Pescosolido Philipp Kohlschreiber Markus WislspergerPortugal F5 Futures$10,000March 10FaroPortugalHard Konstantinos Economidis Guillermo García López Santiago VenturaFrance F7 Futures$15,000March 17PoitiersFranceHard (i) Nicolas Mahut Yves Allegro Daniele BraccialiIndia F4 Futures$15,000March 17MumbaiIndiaHard Zbynek Mlynarik Harsh Mankad Vishal UppalPortugal F6 Futures$10,000March 17CarcavelosPortugalClay Nicolás Almagro Guillermo García López Israel Matos GilFrance F8 Futures$15,000March 24MelunFranceCarpet (i) Peter Wessels Michael Lammer Roman ValentUSA F6 Futures$15,000March 24MobileUSAHard Peter Clarke Michael Joyce Kevin KimAustralia F1 Futures$15,000March 24BurnieAustraliaHard Dudi Sela Raphael Durek Alun JonesIndia F5 Futures$15,000March 24KolkataIndiaHard Zbynek Mlynarik Harsh Mankad Vishal UppalPortugal F7 Futures$10,000March 24EstorilPortugalClay Nicolás Almagro Emanuel Couto Bernardo MotaMexico F1 Futures$15,000March 31NaucalpanMexicoHard Daniel Garza Juan Pablo Brzezicki Carlos BerlocqAustralia F2 Futures$15,000March 31DevonportAustraliaHard Daniel Elsner Luke Bourgeois Chris GuccioneUzbekistan F1 Futures$15,000March 31QarshiUzbekistanHard Rodolphe Cadart Petr Dezort Jaroslav LevinskýUSA F7 Futures$15,000March 31PensacolaUSAHard Nicolás Todero Huntley Montgomery Tripp PhillipsFrance F9 Futures$15,000March 31Saint-BrieucFranceClay (i) Olivier Patience Fabrice Betencourt Édouard Roger-VasselinItaly F1 Futures$10,000March 31RomeItalyClay Tomas Tenconi Gergely Kisgyörgy Giancarlo PetrazzuoloSpain F5 Futures$10,000March 31CastellónSpainClay Guillermo García López Diego Hipperdinger Ferran Ventura-MartellQatar F1 Futures$15,000March 31DohaQatarHard Michael Berrer Benjamin Cassaigne Rogier Wassen

April Tournament Date City Surface Singles champions Doubles championsMexico F2 Futures$15,000April 7AguascalientesMexicoClay Marcos Daniel Frank Moser Bernard ParunJapan F1 Futures$10,000April 7KofuJapanCarpet Takahiro Terachi Rob Cheyne Mark NielsenUSA F8 Futures$15,000April 7Little RockUSAHard Ignacio Hirigoyen Jay Gooding Jordan KerrUzbekistan F2 Futures$15,000April 7GulistonUzbekistanHard Stéphane Bohli Petr Dezort Jaroslav LevinskýGreece F1 Futures$15,000April 7SyrosGreeceHard Marcos Baghdatis Jonathan Erlich Andy RamItaly F2 Futures$10,000April 7FrascatiItalyClay Xavier Pujo Gergely Kisgyörgy Giancarlo PetrazzuoloChile F1 Futures$10,000April 7SantiagoChileClay Marko Neunteibl Patricio Arquez Sebastián DecoudSpain F6 Futures$10,000April 7RocafortSpainClay Germán Puentes Sebastien Lami Dimitri LorinQatar F2 Futures$15,000April 7DohaQatarHard Gary Lugassy Jonathan Marray David SherwoodGreece F2 Futures$15,000April 14KalamataGreeceHard Björn Rehnquist Florin Mergea Horia TecăuChina F1 Futures$15,000April 14TaizhouChina, P.R.Hard Lu Yen-hsun Zhu Benqiang Zeng ShaoxuanUSA F9 Futures$15,000April 14ElkinUSAHard Josh Goffi Josh Goffi Travis ParrottJapan F2 Futures$10,000April 14TokyoJapanHard Tasuku Iwami Rob Cheyne Mark NielsenItaly F3 Futures$10,000April 14ViterboItalyClay Stefano Pescosolido Igor Andreev Gergely KisgyörgyChile F2 Futures$10,000April 14Viña del MarChileClay Julio Peralta Juan Ignacio Cerda Phillip HarboeSpain F7 Futures$10,000April 14VinaròsSpainClay Nicolás Almagro Adrian Cruciat Miguel Ángel López JaénKuwait F1 Futures$10,000April 21MishrefKuwaitHard Ivo Klec Patrik Fredriksson Kalle FlygtJapan F3 Futures$10,000April 21Kumamoto CityJapanHard Yoon Yong-il Hiroki Kondo Norikazu SugiyamaGermany F1 Futures$10,000April 21RiemerlingGermanyClay Robert Lindstedt Robert Lindstedt Fredrik LovénAlgeria F1 Futures$10,000April 21Sidi FredjAlgeriaClay Boris Borgula David Cors Gabriel Trujillo SolerChina F2 Futures$15,000April 21TaizhouChina, P.R.Hard Zhu Benqiang Zhu Benqiang Zeng ShaoxuanChile F3 Futures$10,000April 21SantiagoChileClay David Marrero Francisco Cabello Adrián GarcíaSpain F8 Futures$10,000April 21JáveaSpainClay Francisco Fogués Javier García-Sintes Germán PuentesItaly F4 Futures$10,000April 21BergamoItalyClay Peter Clarke Alessandro Da Col Andrea StoppiniMexico F3 Futures$10,000April 28GuadalajaraMexicoClay Jean-Julien Rojer Eduardo Bohrer Ronaldo CarvalhoKuwait F2 Futures$10,000April 28MishrefKuwaitHard Ivo Klec Florin Mergea Horia TecăuJamaica F3 Futures$10,000April 28Montego BayJamaicaHard Wayne Odesnik Andrew Anderson W.P. MeyerGermany F2 Futures$15,000April 28EsslingenGermanyClay Marcello Craca Robert Lindstedt Fredrik LovénAlgeria F2 Futures$10,000April 28SonatrachAlgeriaClay Jalal Chafai Dušan Karol Jaroslav PospíšilUzbekistan F3 Futures$15,000April 28AndijanUzbekistanHard Marco Chiudinelli Justin Bower Marco ChiudinelliKorea Rep. F1 Futures$15,000April 28CheongjuKorea, Rep.Clay Jan Masik Chung Hee-sung Chung Hee-seokHungary F1 Futures$15,000April 28MiskolcHungaryClay Igor Andreev Kornél Bardóczky Gergely KisgyörgyGreat Britain F5 Futures$15,000April 28BournemouthGreat BritainClay Tomáš Berdych Tomáš Berdych Michal NavrátilItaly F5 Futures$10,000April 28TeramoItalyClay Guillermo Carry Bartłomiej Dąbrowski Mariusz Fyrstenberg

May