Career 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001
All Rounds Final 1/2 1/4 First Second Third Fourth Pre-q Rubber 1 Rubber 2 Rubber 3 Rubber 4 Rubber 5 Robin Bronze Q3 N/A Q2 Q1 ER Q4 CR QF Q5 N/A
All Courts Acrylic N/A Clay Grass Carpet Hard I.hard
All Tour Zadar Challenger Portugal F1 Portugal F2 Hungary F3 Bosnia & Herzegovina F2 Croatia F8 Bosnia/Herzegovina F6 Bosnia/Herzegovina F1 Bosnia & Herzegovina F2 Croatia F7 Croatia F8 Israel F3 Croatia F1 Croatia F2 Italy F6 Italy F7 Bosnia & Herzegovina F2 Bosnia & Herzegovina F3 Bosnia & Herzegovina F5 Serbia F1 Serbia F2 Serbia F3 Serbia F7 Croatia F7 Croatia F8 Croatia F9 Croatia F12 Croatia F13 Croatia F14 Turkey F32 Turkey F33 Turkey F3 Turkey F4 Croatia F1 Italy F1 Italy F2 Italy F5 Italy F6 Bosnia & Herzegovina F1 Bosnia & Herzegovina F2 Bosnia & Herzegovina F3 Poland F1 Bosnia & Herzegovina F5 Italy F14 Italy F20 Romania F7 Croatia F11 Croatia F12 Turkey F2 Croatia F1 Croatia F2 Italy F1 Italy F5 Bosnia & Herzegovina F4 Serbia F3 Croatia F12 France F14 Bulgaria F1 Ljubljana Open - Ljubljana IPP Open - Helsinki Sarajevo Open 2004 - Sarajevo Open Mutouest - St. Brieuc Steelers Cup - Kosice Ljubljana Open - Ljubljana Tennis Napoli Cup - Napoli San Marino Cepu Open - San Marino Copa Petrobras Argentina - Buenos Aires Copa Petrobras Paraguay - Asuncion Morocco Tennis Tour - Casablanca Porsche Open - Poznan Nord LB Open - Braunschweig Citta di Como Challenger - Como Croatia F10 Bancolombia Open - Cali IV Challenger Ciudad De Guayaquil - Guayaquil Iquique Challenger Italy F4 Rabat Challenger Nokian Hakkapeliitta Open - Tampere Barletta Challenger Sarajevo Challenger Kosice Challenger Rijeka Challenger Copa Petrobras - Aracaju San Marino Challenger San Sebastian Challenger Como Challenger Todi Challenger Palermo Challenger Aachen Challenger Genova Challenger Zagreb Challenger Arad Challenger Saransk Challenger Morocco Tennis Tour - Rabat Banja Luka 2002 - Banja Luka Napoli Challenger Bergamo Challenger Caltanissetta Challenger UTC Open by Selena - Cherkassy Memorial Kolyaskin - Donetsk San Marino Challenger Cordenons Challenger Manerbio Challenger Como Challenger Genova Challenger VII Trofeo Ciudad de Quito - Quito Napoli Challenger Palermo Challenger Challenger Brasov - Brasov Copa Petrobras - Bogota Memorial A. Manfredini Sassuolo Challenger - Sassuolo Ortisei Challenger Bratislava Challenger Heilbronn Challenger EI Bank Bulgarian Challenger - Sofia Open Prevadies St. Brieuc Cotes D'Amor - St. Brieuc XXXV Edizione A Savoldi-Marco Co. Trofeo Dimmidisi - Manerbio Baumag Open - Budapest Banja Luka Challenger 2005 - Banja Luka Copa Sevilla Internacionales de Andalucia - Seville Challenger Cudad de Guayaquil - Guayaquil Copa Petrobras - Buenos Aires Blumenau Challenger Gemax Samsung Open 2004 - Belgrade Milan Challenger Arad Challenger XL Bermuda Open - Bermuda San Marino Challenger Sibiu Challenger San Luis Potosi Challenger - San Luis Potosi Open de Montauban - Montauban Como Challenger Brasov Challenger Trnava Challenger Lermontov Challenger Rio De Janeiro Challenger Santiago Challenger Prostejov Challenger Kosice Challenger Poznan Challenger Liberec Challenger San Marino Challenger Cordenons Challenger Kazan Challenger Como Challenger Banja Luka Challenger Szczecin Challenger Sibiu Challenger Kazan Challenger Casablanca Challenger ATU Cup - Weiden Irving Challenger Burbank Challenger - Burbank Mersin Challenger Copa Telefonica CTC Chile - Santiago Arad Challenger Marburg Challenger San Benedetto Challenger Cordenons Challenger Banja Luka Challenger Geneva Challenger Timisoara Challenger - Timisoara Nokian Hakkapeliitta Open - Tampere Morelos Challenger Irving Challenger Rhein-Main Challenger 2004 - Aschaffenburg Samarkand Challenger - Samarkand Tunis Open - Tunis Copa Kia - Santiago Copa Petrobras Uruguray - Montevideo Isla de Gran Canaria - Mas Palomas Moscow Challenger Almaty Challenger 1 - Almaty Kos-Zucchetti Tennis Cup - Cordenons Alexander Kolyaskin Memorial - Donetsk Challenger Tunisie - Tunis Zagreb Challenger San Benedetto Challenger St. Brieuc Challenger Mitsubishi Electric Europe Cup - Monza Orbetello Challenger Aamulehti Tampere Open - Tampere Alphen Challenger Prosperita Open 2007 - Ostrava Sporting Challenger '07 Trofeo Regione Piemonte - Turin Ostdeutscher Sparkessen Cup - Dresden Mohammedia Challenger BH Indoor Sarajevo - Sarajevo Marrakech Challenger Bukhara Challenger - Bukhara 12 Open Barletta Citta Della Disfida Trofeo Angeldevil - Barletta Architect Open - Budapest Samarkand Challenger Guadalajara Challenger Copa Petrobras - Santiago Copa Petrobras - Montevideo Prostejov Challenger Salzburg Challenger Sporting Challenger '08-Trofeo Regione Piemonte - Turin Alphen Challenger UTC Open - Cherkassy Copa Petrobras-Argentina - Buenos Aires Cordenons Challenger Copa Petrobras Brazil - Aracaju Copa Kia Challenger ATP - Santiago Almaty Challenger 2 - Almaty Blois Challenger XXXIV Edizione 'A. Savoldi-Marco Co.' Trofeo Dimmidisi - Manerbio IPP Open - Helsinki IX Abierto Internacional de Salinas - Salinas Mohammedia Challenger Banja Luka Challenger 2004 Keys Gate Challenger - Homestead Timisoara Challenger Casablanca Challenger Salinas Challenger Sao Paulo Challenger Tunis Challenger Rome Challenger Bytom Challenger Constanta Challenger Casablanca Challenger Genova Challenger Tashkent Challenger Trnava Challenger Polska Energia Open - Bytom Braunschweig Challenger New Haven Challenger Kosice Challenger Ljubljana Challenger Braunschweig Challenger Tulln Challenger Santo Domingo Challenger Salzburg-Anif Challenger La Serena Open - La Serena Meknes Challenger Kenitra Challenger Kobe Challenger Helsinki Challenger Ottignies-Louvain-la-Neuve Challenger Challenger Brasov - Brasov Zagreb Challenger Copa Ericsson Argentina - Buenos Aires Montemar Challenger Cap Cana Challenger Rome Challenger Guayaquil Challenger Zadar Challenger St. Petersburg Open - St. Petersburg San Benedetto Challenger Tiburon Challenger - Tiburon Canberra Challenger Lisbon Challenger Istanbul Challenger Szekesfehervar Challenger Tunis Challenger 2003 USTA Tallahassee Tennis Challenger - Tallahassee Santo Domingo Challenger 9th Torneo B. Camparini Arpa Ceramic Cup - Reggio Emilia Orleans Challenger Quimper Challenger Lyon Challenger Santos Challenger Meerbusch Challenger Sao Paulo Challenger Matsuyama Challenger Noumea Challenger Rome Challenger Caltanissetta Challenger Tampere Imageneering Open - Tampere Monza Challenger Salzburg Challenger Mordovia Cup - Mordovia Mallorca Challenger La Serena Open - La Serena BMW Open - Munich Timisoara Challenger Manama Challenger Rhein-Main Challenger 2003 - Aschaffenburg Synsam Swedish Open - Bastad Recanati Challenger II Cyclus Open de Tenis - Florianopolis Orbetello Challenger Aptos Challenger The Nottingham Challenger - Nottingham Morocco Tennis Tour - Fes BellSouth Open - Vina del Mar Argentina Open - Buenos Aires Rome 2 Challenger Gemax Open 2002 - Belgrade Nottingham 2 Challenger Asirom Challenger Brasov - Brasov Trieste Challenger Meerbusch Challenger BMW Open - Munich Barcelona Challenger Bergamo Challenger Bratislava Challenger Helsinki Challenger Copa Ericsson Chile - Santiago Lille Challenger Lugano Challenger Gemax Open - Belgrade Mauthausen Challenger Atlantic City Open - Atlantic City Stella Artois Clay Court Championships - Budaors Bulgarian Open - Sofia Cordenons Challenger Brest Challenger Copa Petrobras Colombia - Bogota Tennis Napoli Cup 2004 - Napoli Banja Luka Challenger Memorial Savigni - Sassuolo Sibiu Challenger IPP Geneva Trophy - Geneva Antonio Savoldi-Marco Co. - Manerbio Dubrovnik Open - Dubrovnik Music City Challenger - Nashville Yokohama Challenger Next Generation Adelaide International - Adelaide Ljubljana Open - Ljubljana Challenger ATP de Cuenca Diario El Mercurio - Cuenca Stella Artois Clay Court Championships - Budaors Movistar Open - Vina del Mar Togliatti Cup - Togliatti Mordovia Cup 2005 - Saransk XI Trofeo Ciudad de Quito - Quito Antalya Challenger Maia Challenger PEOPLEnet Cup - Dnepropetrovsk Brasil Open - Costa do Sauipe Abierto Mexicano Telcel - Acapulco Ostrava Challenger Open de Tenis Comunidad Valenciana - Valencia BMW Open - Munich Ostrava Challenger Tunis Challenger MoviStar Open - Vina del Mar Ilkley Challenger Copa Telmex - Buenos Aires Abierto Mexicano Telcel - Acapulco Open Seat Godo 2007 - Barcelona Mercedes Cup - Stuttgart Generali Open - Kitzbuhel Orange Prokom Open - Sopot China Open - Beijing Oberstaufen Challenger Mumbai Open - Mumbai AIG Japan Open Tennis Championships - Tokyo Bratislava Challenger St. Petersburg Open - St. Petersburg Bendigo Challenger Penza Challenger Copa Telmex - Buenos Aires Copa Petrobras-Paraguay - Asuncion Estoril Open - Estoril Grand Prix Hassan II - Casablanca Karshi Challenger Catella Swedish Open - Bastad Copa Petrobras-Uruguay - Montevideo Rijeka Challenger Split Challenger Barcelona Challenger Lisbon Challenger Napoli Challenger Como Challenger Zagreb Challenger Oeiras 3 Challenger Genova Challenger Sibiu Challenger Serbia Open - Belgrade Movistar Open - Santiago Brasil Open - Costa do Sauipe Karlsruhe Challenger Open Sabadell Atlantico - Barcelona Serbia Open - Belgrade Mercedes Cup - Stuttgart Furth Challenger Bendigo Challenger Alphen Challenger Copa Telmex - Buenos Aires Bergamo Challenger PBZ Zagreb Indoors - Zagreb Next Generation Adelaide International - Adelaide Banja Luka Challenger Seville Challenger Samarkand Challenger Movistar Open - Vina del Mar Brasil Open - Costa do Sauipe Salinas Challenger Santo Domingo Challenger Heilbronn Challenger Porto Alegre Challenger Cortina Challenger Orange Warsaw Open - Warsaw Montevideo Challenger Sao Leopoldo Challenger San Luis Potosi Challenger Marbella Challenger Grand Prix Hassan II - Casablanca St. Brieuc Challenger Barletta Challenger Cherbourg Challenger Sarajevo Challenger Napoli Challenger Studena Croatia Open - Umag ATP Vegeta Croatia Open - Umag If Stockholm Open - Stockholm Itajai Challenger Santos Challenger Vegeta Croatia Open - Umag Tunis Challenger Winston-Salem Open - Winston-Salem PBZ Zagreb Indoors - Zagreb Grand Prix Hassan II - Casablanca Geneva Open - Geneva Memphis Open - Memphis Delray Beach Open - Delray Beach Abierto Mexicano Telcel - Acapulco Rome Challenger BRD Nastase Tiriac Trophy - Bucharest TEB BNP Paribas Istanbul Open - Istanbul Bratislava Challenger Winston-Salem Open - Winston-Salem Erste Bank Open - Vienna Generali Open - Kitzbuhel BRD Nastase Tiriac Trophy - Bucharest Tunis Challenger Delray Beach Open - Delray Beach Konzum Croatia Open - Umag Bet-at-home Open - Hamburg Abierto Mexicano - Los Cabos Winston-Salem Open - Winston-Salem Shenzhen Open - Shenzhen Sydney International - Sydney ABN AMRO World Tennis Tournament - Rotterdam Dubai Duty Free Tennis Championships - Dubai AEGON Championships - London Antalya Cup - Antalya Plava Laguna Croatia Open - Umag Abierto Mexicano - Los Cabos Medibank International - Sydney St. Petersburg Open - St. Petersburg Lima Challenger Shenzhen Open - Shenzhen Kremlin Cup - Moscow Erste Bank Open - Vienna Winston-Salem Open - Winston-Salem St. Petersburg Open - St. Petersburg Poznan Challenger Kremlin Cup - Moscow Qatar ExxonMobil Open - Doha Astana Open - Nur-Sultan Abierto Mexicano Telcel - Acapulco St. Petersburg Open - St. Petersburg Kremlin Cup - Moscow Anytech365 Andalucia Open - Marbella Ostrava Challenger Serbia Open - Belgrade Firenze Open - Florence Qatar ExxonMobil Open - Doha Poznan Challenger Plava Laguna Croatia Open - Umag Millennium Estoril Open - Estoril Andria Challenger Bucharest Open - Bucharest Palermo Challenger Hangzhou Open - Hangzhou Argentina Open - Buenos Aires Rio Open - Rio de Janeiro Tiriac Open - Bucharest Mersin Challenger Mercedes Cup - Stuttgart Mallorca Championships - Mallorca Nordea Open - Bastad Boss Open - Stuttgart European Open - Brussels Nottingham 1 Challenger Copa Claro - Buenos Aires Sarajevo Challenger Brisbane International - Brisbane Buenos Aires Challenger Kosice Challenger Open 13 - Marseille Grand Prix de Tennis de Lyon - Lyon Segovia Challenger Kremlin Cup - Moscow Aircel Chennai Open - Chennai Nordea Open - Bastad Erste Bank Open - Vienna TEB BNP Paribas Istanbul Open - Istanbul Ostrava Challenger Vegeta Croatia Open - Umag Arad Challenger Bet-at-home Open - Hamburg Sibiu Challenger San Benedetto Challenger Almaty Open - Almaty Erste Bank Open - Vienna Qatar ExxonMobil Open - Doha Garanti Koza Sofia Open - Sofia Winston-Salem Open - Winston-Salem Copa Ericsson Uruguay - Montevideo Open de Nice Cote d'Azur - Nice Aegon Nottingham Open - Nottingham Konzum Croatia Open - Umag Erste Bank Open - Vienna Tampere Challenger Kremlin Cup - Moscow Bratislava Challenger Bratislava 2 Challenger Garanti Koza Sofia Open - Sofia Neride Prague Indoor - Prague Jameson Cup - Milan Memphis Open - Memphis New York Open - New York Canottieri Mincio Open - Mantova St. Petersburg Challenger by Kinex - St. Petersburg Dubai Duty Free Tennis Championships - Dubai Forli 5 Challenger Hungarian Open - Budapest TEB BNP Paribas Istanbul Open - Istanbul Kenitra Challenger Movistar Open - Vina del Mar St. Petersburg Open - St. Petersburg Perugia Challenger Como Challenger Erste Bank Open - Vienna Open Sud de France - Montpellier Hamburg European Open - Hamburg Vancouver Challenger IX Torneo Internacionale de Tennis - Barletta Gazprom Hungarian Open - Budapest Open Sud de France - Montpellier ABN AMRO World Tennis Tournament - Rotterdam Banja Luka Challenger Plava Laguna Croatia Open - Umag Marbella Challenger Belgrade Challenger Geneva Open - Geneva Turkish Airlines Open Antalya - Antalya SkiStar Swedish Open - Bastad Split Challenger Zhuhai Open - Zhuhai China Open - Beijing Open Sud de France - Montpellier Abierto Mexicano Telcel - Acapulco Open Sud de France - Montpellier Zug Challenger Rosario Challenger Santo Domingo Challenger Serbia Open - Belgrade Movistar Chile Open - Santiago Open Seat Godo 2005 - Barcelona Plava Laguna Croatia Open - Umag Delray Beach Open - Delray Beach Open 13 Provence - Marseille Prague 2 Challenger Grand Prix Hassan II - Marrakech Sydney International - Sydney BMW Open - Munich bett1HULKS Championships - Cologne Estoril Open - Estoril Istanbul Challenger Qatar ExxonMobil Open - Doha Stockholm Open - Stockholm Dutch Open Tennis - Amersfoort Bratislava 2 Challenger Orange Prokom Open - Sopot Pilot Pen Tennis - New Haven BCR Open Romania - Bucharest Banja Luka Open - Banja Luka Hamburg Open - Hamburg Abierto Mexicano Telcel - Acapulco Ismaning Challenger Helsinki Challenger Danderyd Challenger ATP Studena Croatia Open Umag - Umag Barletta Challenger Copa Telmex - Buenos Aires Nottingham 2 Challenger Bonn Challenger Apia International - Sydney Open Parc - Lyon Kremlin Cup - Moscow Brisbane International - Brisbane Open 13 Provence - Marseille TEB BNP Paribas Istanbul Open - Istanbul Abierto Mexicano de Tenis Mifel - Los Cabos Brasil Open - Costa do Sauipe ABN AMRO World Tennis Tournament - Rotterdam Vilnius Challenger Heilbronn Challenger Bratislava 1 Challenger Belgrade Open - Belgrade Adelaide International - Adelaide Barcelona Open Banc Sabadell - Barcelona Canberra Challenger Phoenix Challenger Hellenic Championship - Athens Pacific Life Open - Indian Wells NASDAQ-100 Open - Miami Campionati Internazionali d'Italia - Rome Masters Series Hamburg - Hamburg Masters Series Monte Carlo - Monte Carlo Qatar Open - Doha Milan Indoors - Milan U.S. Men's Clay Court Championships - Houston Bordeaux Challenger Masters Series Monte-Carlo - Monte-Carlo Gerry Weber Open - Halle Synsam Swedish Open - Bastad Campionati BNL dItalia - Rome Masters Series Hamburg - Hamburg Astana Open - Astana Miami Open - Miami Internazionali BNL d'Italia - Rome Miami Open - Miami Sony Open Tennis - Miami BNP Paribas Open - Indian Wells Monte-Carlo Rolex Masters - Monte-Carlo Internazionali BNL d'Italia - Rome BNP Paribas Open - Indian Wells Internazionali BNL d'Italia - Rome Shanghai Rolex Masters - Shanghai Aircel Chennai Open - Chennai Stockholm Open - Stockholm Miami Open - Miami Mutua Madrid Open - Madrid BNP Paribas Masters - Paris BNP Paribas Open - Indian Wells Miami Open - Miami Mutua Madrid Open - Madrid BNP Paribas Open - Indian Wells Shanghai Rolex Masters - Shanghai BNP Paribas Masters - Paris Western & Southern Open - New York Internazionali BNL d'Italia - Rome Hangzhou Open - Hangzhou Japan Open Tennis Championships - Tokyo Dubai Duty Free Tennis Championships - Dubai Internazionali BNL d'Italia - Rome BNP Paribas Open - Indian Wells Miami Open - Miami Shanghai Rolex Masters - Shanghai Rolex Paris Masters - Paris BNP Paribas Open - Indian Wells Rogers Cup - Toronto BNP Paribas Open - Indian Wells Miami Open - Miami Western & Southern Open - Cincinnati Shanghai Rolex Masters - Shanghai Monte-Carlo Rolex Masters - Monte-Carlo U.S. Open - New York BNP Paribas Open - Indian Wells Monte-Carlo Rolex Masters - Monte-Carlo Western & Southern Open - Cincinnati Monte-Carlo Rolex Masters - Monte-Carlo Shanghai Rolex Masters - Shanghai Miami Open - Miami National Bank Open - Toronto Cincinnati Open - Cincinnati Mutua Madrid Open - Madrid Moselle Open - Metz China Open - Beijing Wimbledon - London German Tennis Championships - Hamburg Rakuten Japan Open - Tokyo Qatar ExxonMobil Open - Doha Open 13 Provence - Marseille Dubai Duty Free Tennis Championships - Dubai Australian Open - Melbourne French Open - Paris Wimbledon - London Australian Open - Melbourne French Open - Paris U.S. Open - New York French Open - Paris Australian Open - Melbourne French Open - Paris Wimbledon - London French Open - Paris Australian Open - Melbourne Wimbledon - London U.S. Open - New York Australian Open - Melbourne French Open - Paris Wimbledon - London U.S. Open - New York Australian Open - Melbourne Australian Open - Melbourne French Open - Paris Wimbledon - London French Open - Paris U.S. Open - New York Wimbledon - London Australian Open - Melbourne Wimbledon - London French Open - Paris U.S. Open - New York Wimbledon - London U.S. Open - New York Australian Open - Melbourne Wimbledon - London U.S. Open - New York French Open - Paris French Open - Paris Australian Open - Melbourne Wimbledon - London Australian Open - Melbourne U.S. Open - New York Australian Open - Melbourne French Open - Paris French Open - Paris Wimbledon - London U.S. Open - New York Australian Open - Melbourne French Open - Paris Australian Open - Melbourne U.S. Open - New York French Open - Paris Australian Open Qualifying - Doha Wimbledon - London Australian Open - Melbourne Wimbledon - London Internazionali BNL d'Italia - Rome U.S. Open - New York French Open - Paris BNP Paribas Masters - Paris Australian Open - Melbourne French Open - Paris Wimbledon - London Internazionali BNL d'Italia - Rome U.S. Open - New York Australian Open - Melbourne Wimbledon - London U.S. Open - New York Australian Open - Melbourne Davis Cup, Group 2, REL2, HUN-SCG 0-3 Davis Cup, Group II, 2R, FIN-BIH 2-3 Davis Cup, Group II, 3R, BIH-LTU 2-3 Davis Cup, Group I, 2R, SVK-BIH 2-3 Davis Cup, World Group, QR, AUS-BIH 4-0 Davis Cup, World Group I, PO, BIH-RSA 3-1 Davis Cup, Group I, 1R, PER-BIH 3-2 Davis Cup, Group I, 1R, BIH-POL 5-0 Davis Cup, Group 2, 2R, SCG-POR 5-0 Davis Cup, Group II, 3R, DEN-BIH 3-2 Davis Cup, World Group, PO, SRB-AUS 4-1 Davis Cup, Group II, 2R, BLR-BIH 4-1 Davis Cup, Group II, 3R, LTU-BIH 0-5 Davis Cup, Group II, 1R, BIH-GRE 3-1 Davis Cup, World Group I, 1R, TPE-BIH 3-2 Davis Cup, Group 2, REL2, GRE-SRB 3-2 Davis Cup, Europe/Africa Group II, 2R, EST-BIH 2-3 Davis Cup, Europe/Africa Group II, 3R, POR-BIH 3-2 French Open (juniors) Wimbledon (juniors) U.S. Open (juniors) Davis Cup, World Group, 1R, BEL-SRB 2-3 Davis Cup, Group II, 1R, BIH-LUX 4-1 Davis Cup, Group II, 2R, BIH-MDA 1-3 Davis Cup, Group II, 1R, ZIM-BIH 1-4 All Lower level tournaments Davis Cup, Group I, 1R, ECU-BIH 3-2 Davis Cup, World Group, PO, SWE-BIH 3-1 Davis Cup, Group I, PO, TUN-BIH 1-3 Davis Cup, Group I, 1R, BIH-MEX 3-1 Davis Cup, Group I, 1R, BIH-GER 0-4 Davis Cup, Group I, PO, BUL-BIH 1-3 Davis Cup, Group I, PO, UZB-BIH 1-3 Davis Cup, Group II, 2R, BIH-TUR 3-1 Davis Cup, Group I, 2R, BIH-NED 1-3 Olympics - Rio de Janeiro Manacor Challenger Japan Open Tennis Championships - Tokyo