This article lists the professional tennis players who reached the highest ranking among their compatriots during the Open Era. The rankings used are ATP Rankings for men and WTA Rankings for women.
On 11 September 2017, Garbiñe Muguruza and Rafael Nadal made Spain the first country since the United States 14 years ago to simultaneously top both the ATP and the WTA rankings, with Muguruza making her debut in the No. 1 spot. The most recent previous such pair were Serena Williams and Andre Agassi, 28 April to 11 May, 2003.[1]
| Nation | Ranking | Player(s) | Date reached |
|---|
| Algeria}} | 114 | Lamine Ouahab | 21 September 2009 |
| Argentina}} | 2 | Guillermo Vilas | 30 April 1975 |
| Armenia}} | 38 | Sargis Sargsian | 12 January 2004 |
| Australia}} | 1 | John Newcombe
Patrick Rafter
Lleyton Hewitt | 3 June 1974
26 July 1999
19 November 2001 |
| Austria}} | 1 | Thomas Muster | 12 February 1996 |
| Bahamas}} | 96 | Mark Knowles | 24 June 1996 |
| Barbados}} | 106 | Darian King | 8 May 2017 |
| Belarus}} | 18 | Max Mirnyi | 18 August 2003 |
| Belgium}} | 7 | David Goffin | 20 November 2017 |
| Bolivia}} | 35 | Mario Martinez | 12 September 1983 |
| Bosnia and Herzegovina}} | 23 | Damir Džumhur | 2 July 2018 |
| Brazil}} | 1 | Gustavo Kuerten | 4 December 2000 |
| Bulgaria}} | 3 | Grigor Dimitrov | 20 November 2017 |
| Canada}} | 3 | Milos Raonic | 21 November 2016 |
| Chile}} | 1 | Marcelo Ríos | 30 March 1998 |
| China}} | 140 | Wu Di | 25 April 2016 |
| Chinese Taipei}} | 33 | Lu Yen-hsun | 1 November 2010 |
| Colombia}} | 28 | Santiago Giraldo | 29 September 2014 |
| Croatia}} | 2 | Goran Ivanišević | 4 July 1994 |
| Cyprus}} | 8 | Marcos Baghdatis | 21 August 2006 |
| Czech Republic}} | 1 | Ivan Lendl | 28 February 1983 |
| Denmark}} | 41 | Kenneth Carlsen | 7 June 1993 |
| Dominican Republic}} | 43 | Víctor Estrella | 13 July 2015 |
| Ecuador}} | 4 | Andrés Gómez | 11 June 1990 |
| Egypt}} | 34 | Ismail El Shafei | 8 April 1975 |
| El Salvador}} | 139 | Marcelo Arévalo | 2 July 2018 |
| Estonia}} | 71 | Jürgen Zopp | 10 September 2012 |
| Finland}} | 13 | Jarkko Nieminen | 10 July 2006 |
| France}} | 3 | Yannick Noah | 7 July 1986 |
| Georgia}} | 9 | Alex Metreveli | 3 July 1974 |
| Germany}} | 1 | Boris Becker | 28 January 1991 |
| Greece}} | 12 | Stefanos Tsitsipas | 28 January 2019 |
| Guatemala}} | 275 | Christopher Díaz Figueroa | 30 September 2013 |
| Haiti}} | 22 | Ronald Agénor | 8 May 1989 |
| Hong Kong}} | 800 | Wong Hong Kit | 30 October 2017 |
| Hungary}} | 12 | Balázs Taróczy | 5 April 1982 |
| India}} | 16 | Vijay Amritraj | 7 July 1980 |
| Indonesia}} | 241 | Christopher Rungkat | April 8, 2013 |
| Iran}} | 192 | Mansour Bahrami | 9 May 1988 |
| Ireland}} | 146{{#tag:ref|Matt Doyle ranked world number 56 in 1983. He represented Ireland in the Davis Cup from 1981 but did not acquire Irish nationality until 1985. |group="n"}} | James McGee | 22 June 2015 |
| Israel}} | 18 | Amos Mansdorf | 16 November 1987 |
| Italy}} | 4 | Adriano Panatta | 24 August 1976 |
| Jamaica}} | 64 | Dustin Brown | 10 October 2016 |
| Japan}} | 4 | Kei Nishikori | 2 March 2015 |
| Kazakhstan}} | 33 | Andrey Golubev | 4 October 2010 |
| Latvia}} | 10 | Ernests Gulbis | 9 June 2014 |
| Lithuania}} | 50 | Ričardas Berankis | 23 May 2016 |
| Luxembourg}} | 21 | Gilles Müller | 31 July 2017 |
| Mexico}} | 4 | Raúl Ramírez | 7 November 1976 |
| Macedonia}} | 510 | Tomislav Jotovski | 15 June 2015 |
| Moldova}} | 46 | Radu Albot | 18 March 2019 |
| Monaco}} | 84 | Jean-René Lisnard | 27 January 2003 |
| Montenegro}} | 236 | Goran Tošić | 7 June 2010 |
| Morocco}} | 14 | Younes El Aynaoui | 11 March 2003 |
| Netherlands}} | 3 | Tom Okker | 2 March 1974 |
| New Zealand}} | 19 | Chris Lewis | 16 April 1984 |
| Nigeria}} | 52 | Nduka Odizor | 11 June 1984 |
| Norway}} | 39 | Christian Ruud | 9 October 1995 |
| Pakistan}} | 44 | Haroon Rahim | 2 July 1977 |
| Paraguay}} | 9 | Víctor Pecci | 21 April 1980 |
| Peru}} | 18 | Jaime Yzaga | 30 October 1989 |
| Philippines}} | 72 | Cecil Mamiit | 11 October 1999 |
| Poland}} | 10 | Wojciech Fibak | 25 July 1977 |
| Portugal}} | 28 | João Sousa | 16 May 2016 |
| Romania}} | 1 | Ilie Năstase | 23 August 1973 |
| Russia}} | 1 | Yevgeny Kafelnikov
Marat Safin | 3 May 1999
20 November 2000 |
| Senegal}} | 74 | Yahiya Doumbia | 19 September 1988 |
| Serbia}} | 1 | Novak Djokovic | 4 July 2011 |
| Slovakia}} | 4 | Miloslav Mečíř | 22 February 1988 |
| Slovenia}} | 43 | Grega Žemlja
Aljaž Bedene | 15 July 2013
19 February 2018 |
| South Africa}} | 5 | Kevin Curren | 22 July 1985 |
| South Korea}} | 19 | Chung Hyeon | 2 April 2018 |
| Spain}} | 1 | Carlos Moyà
Juan Carlos Ferrero
Rafael Nadal | 15 March 1999
8 September 2003
18 August 2008 |
| Sweden}} | 1 | Björn Borg
Mats Wilander
Stefan Edberg | 23 August 1977
12 September 1988
13 August 1990 |
| Switzerland}} | 1 | Roger Federer | 2 February 2004 |
| Thailand}} | 9 | Paradorn Srichaphan | 12 May 2003 |
| Tunisia}} | 46 | Malek Jaziri | 12 November 2018 |
| Turkey}} | 77 | Marsel İlhan | 2 March 2015 |
| Ukraine}} | 4 | Andriy Medvedev | 16 May 1994 |
| United Kingdom}} | 1 | Andy Murray | 7 November 2016 |
| United States}} | 1 | Jimmy Connors
John McEnroe
Jim Courier
Pete Sampras
Andre Agassi
Andy Roddick | 29 July 1974
3 March 1980
10 February 1992
12 April 1993
10 April 1995
3 November 2003 |
| Uruguay}} | 19 | Pablo Cuevas | 15 August 2016 |
| Uzbekistan}} | 33 | Denis Istomin | 13 August 2012 |
| Venezuela}} | 74 | Nicolás Pereira | 22 July 1996 |
| Vietnam}} | 430 | Lý Hoàng Nam | 21 May 2018 |
| Zimbabwe}} | 22 | Byron Black | 29 April 1996 |
| Nation | Ranking | Player(s) | Date reached |
|---|
| Albania}} | 1061 | Daniela Islamaj | 21 June 2010 |
| Algeria}} | 381 | Feriel Esseghir | 8 April 2002 |
| Angola}} | 373 | Helga Vieira | 16 July 2001 |
| Argentina}} | 3 | Gabriela Sabatini | 27 February 1989 |
| Armenia}} | 422 | Ani Amiraghyan | 12 August 2003 |
| Australia}} | 1 | Evonne Goolagong Cawley | 26 April 1976 |
| Austria}} | 7 | Barbara Schett | 13 September 1999 |
| Azerbaijan}} | 1141 | Kamilla Farhad | 7 November 2011 |
| Bahamas}} | 953 | Simone Pratt | 29 October 2012 |
| Belarus}} | 1 | Victoria Azarenka | 30 January 2012 |
| Belgium}} | 1 | Kim Clijsters
Justine Henin | 11 August 2003
20 October 2003 |
| Bolivia}} | 187 | María Fernanda Álvarez Terán | 28 September 2009 |
| Bosnia and Herzegovina}} | 99 | Mervana Jugić-Salkić | 21 June 2004 |
| Brazil}} | 43 | Teliana Pereira | 19 October 2015 |
| Bulgaria}} | 4 | Magdalena Maleeva | 29 January 1996 |
| Cambodia}} | 585 | Andrea Ka | 21 May 2017 |
| Canada}} | 5 | Eugenie Bouchard | 20 October 2015 |
| Chile}} | 162 | Daniela Seguel | 28 July 2018 |
| China}} | 2 | Li Na | 17 February 2014 |
| Chinese Taipei}} | 23 | Hsieh Su-wei | 25 February 2013 |
| Colombia}} | 16 | Fabiola Zuluaga | 17 January 2005 |
| Croatia}} | 4 | Iva Majoli | 5 February 1996 |
| Cuba}} | 722 | Yanet Núñez Mojarena | 14 October 2002 |
| Czech Republic}} | 1 | Karolína Plíšková | 17 July 2017 |
| Denmark}} | 1 | Caroline Wozniacki | 11 October 2010 |
| Dominican Republic}} | 424 | Francesca Segarelli | 15 June 2015 |
| Ecuador}} | 669 | Doménica González | 5 November 2012 |
| Egypt}} | 361 | Sandra Samir | 22 October 2016 |
| El Salvador}} | 805 | Liz Cruz | 26 April 2004 |
| Estonia}} | 15 | Kaia Kanepi | 20 August 2012 |
| Finland}} | 50 | Emma Laine | 7 August 2006 |
| France}} | 1 | Amelie Mauresmo | 13 September 2004 |
| Georgia}} | 12 | Leila Meskhi | 5 August 1991 |
| Germany}} | 1 | Steffi Graf
Angelique Kerber | 17 August 1984
12 September 2016 |
| Greece}} | 14 | Eleni Daniilidou | 12 May 2003 |
| Guatemala}} | 808 | Melissa Morales | 20 August 2007 |
| Haiti}} | 397 | Neyssa Etienne | 14 June 2004 |
| Hong Kong}} | 184 | Zhang Ling | 12 September 2011 |
| Hungary}} | 7 | Andrea Temesvári | 23 January 1984 |
| India}} | 27 | Sania Mirza | 27 August 2007 |
| Indonesia}} | 19 | Yayuk Basuki | 6 October 1997 |
| Ireland}} | 181 | Kelly Liggan | 15 September 2003 |
| Israel}} | 11 | Shahar Pe'er | 31 January 2011 |
| Italy}} | 4 | Francesca Schiavone | 31 January 2011 |
| Jamaica}} | 724 | Alanna Broderick | 1 November 2004 |
| Japan}} | 1 | Naomi Osaka | 28 January 2019 |
| Kazakhstan}} | 25 | Yaroslava Shvedova | 29 October 2012 |
| Kyrgyzstan}} | 163 | Ksenia Palkina Ulukan | 16 March 2009 |
| Latvia}} | 5 | Jeļena Ostapenko | 19 March 2018 |
| Liechtenstein}} | 137 | Stephanie Vogt | 24 February 2014 |
| Lithuania}} | 197 | Lina Stančiūtė | 28 September 2009 |
| Luxembourg}} | 18 | Anne Kremer | 29 July 2002 |
| Macedonia}} | 170 | Lina Gjorcheska | 12 June 2017 |
| Madagascar}} | 44 | Dally Randriantefy | 11 April 2005 |
| Malaysia}} | 329 | Khoo Chin-bee | 15 September 2003 |
| Malta}} | 1034 | Kimberley Cassar | 8 November 2010 |
| Mauritius}} | 233 | Marinne Giraud | 9 February 2009 |
| Mexico}} | 34 | Angélica Gavaldón | 1 January 1996 |
| Moldova}} | 406 | Alexandra Perper | 25 June 2018 |
| Montenegro}} | 46 | Danka Kovinić | 22 February 2016 |
| Morocco}} | 139 | Bahia Mouhtassine | 24 June 2002 |
| Namibia}} | 871 | Lesedi Sheya Jacobs | 31 October 2016 |
| Netherlands}} | 5 | Betty Stöve | 3 July 1977 |
| New Zealand}} | 17 | Belinda Cordwell | 4 December 1989 |
| Nigeria}} | 1010 | Melissa Ifidzhen | 26 June 2016 |
| Norway}} | 206 | Ulrikke Eikeri | 16 April 2018 |
| Oman}} | 362 | Fatma Al Nabhani | 4 October 2010 |
| Pakistan}} | 943 | Ushna Suhail | 12 December 2016 |
| Papua New Guinea}} | 276 | Abigail Tere-Apisah | 6 August 2018 |
| Paraguay}} | 51 | Rossana de los Ríos | 12 November 2001 |
| Peru}} | 14 | Laura Arraya | 4 March 1990 |
| Philippines}} | 386 | Francesca La'o | 7 November 1994 |
| Poland}} | 2 | Agnieszka Radwańska | 9 July 2012 |
| Portugal}} | 76 | Michelle Larcher de Brito | 6 July 2009 |
| Puerto Rico}} | 27 | Kristina Brandi
Monica Puig | 4 December 2000
26 September 2016 |
| Romania}} | 1 | Simona Halep | 9 October 2017 |
| Russia}} | 1 | Maria Sharapova
Dinara Safina | 22 August 2005
20 April 2009 |
| Samoa}} | 662 | Steffi Carruthers | 13 October 2014 |
| San Marino}} | 448 | Francesca Guardigli | 4 August 1997 |
| Serbia}} | 1 | Ana Ivanovic
Jelena Janković | 9 June 2008
11 August 2008 |
| Singapore}} | 438 | Stefanie Tan | 15 May 2017 |
| Slovakia}} | 4 | Dominika Cibulková | 20 March 2017 |
| Slovenia}} | 6 | Mima Jausovec | 22 March 1982 |
| South Africa}} | 3 | Amanda Coetzer | 3 November 1997 |
| South Korea}} | 45 | Cho Yoon-jeong | 14 July 2003 |
| Spain}} | 1 | Arantxa Sánchez Vicario
Garbiñe Muguruza | 6 February 1995
11 September 2017 |
| Sri Lanka}} | 268 | Lihini Weerasuriya | 15 February 1993 |
| Sweden}} | 10 | Catarina Lindqvist | 15 April 1985 |
| Switzerland}} | 1 | Martina Hingis | 31 March 1997 |
| Thailand}} | 19 | Tamarine Tanasugarn | 13 May 2002 |
| Trinidad and Tobago}} | 905 | Yolande Leacock | 18 April 2011 |
| Tunisia}} | 54 | Ons Jabeur | 25 February 2019 |
| Turkey}} | 60 | Çağla Büyükakçay | 12 September 2016 |
| Turkmenistan}} | 536 | Anastasiya Prenko | 3 May 2010 |
| Ukraine}} | 3 | Elina Svitolina | 11 September 2017 |
| Uruguay}} | 222 | Daniela Olivera | 16 April 2001 |
| United Kingdom}} | 2 | Virginia Wade | 3 November 1975 |
| United States}} | 1 | Chris Evert
Martina Navratilova
Tracy Austin
Monica Seles
Lindsay Davenport
Jennifer Capriati
Venus Williams
Serena Williams | 3 November 1975
10 July 1978
7 April 1980
11 March 1991
12 October 1998
15 October 2001
25 February 2002
8 July 2002 |
| Uzbekistan}} | 16 | Iroda Tulyaganova | 17 June 2002 |
| Venezuela}} | 26 | María Vento-Kabchi | 19 July 2004 |
| Vietnam}} | 876 | Huỳnh Phương Đài Trang | 12 April 2010 |
| Zimbabwe}} | 31 | Cara Black | 15 March 1999 |
| Nation | Ranking | Player(s) | Date reached |
|---|
| Australia}} | 1 | Paul McNamee
John Fitzgerald
Todd Woodbridge
Mark Woodforde | 25 May 1981
8 July 1991
6 July 1992
16 November 1992 |
| Bahamas}} | 1 | Mark Knowles | 24 June 2002 |
| Belarus}} | 1 | Max Mirnyi | 9 June 2003 |
| Belgium}} | 10 | Dick Norman | 26 April 2010 |
| Brazil}} | 1 | Marcelo Melo | 2 November 2015 |
| Canada}} | 1 | Grant Connell
Daniel Nestor | 15 November 1993
3 November 2002 |
| Croatia}} | 1 | Mate Pavić | 21 May 2018 |
| Czech Republic}} | 1 | Tomáš Šmíd | 17 December 1984 |
| Ecuador}} | 1 | Andrés Gómez | 15 September 1986 |
| Finland}} | 1 | Henri Kontinen | 3 April 2017 |
| France}} | 1 | Yannick Noah
Nicolas Mahut | 25 August 1986
6 June 2016 |
| India}} | 1 | Mahesh Bhupathi
Leander Paes | 26 April 1999
21 June 1999 |
| Indonesia}} | 81 | Christopher Rungkat | 25 February 2019 |
| Mexico}} | 1 | Raúl Ramírez | 12 April 1976 |
| Netherlands}} | 1 | Tom Okker
Paul Haarhuis
Jacco Eltingh | 5 February 1979
31 January 1994
16 January 1995 |
| Philippines}} | 18 | Treat Huey | 11 July 2016 |
| Poland}} | 1 | Łukasz Kubot | 8 January 2018 |
| Romania}} | 2 | Horia Tecău | 23 November 2015 |
| Serbia}} | 1 | Slobodan Živojinović1
Nenad Zimonjić | 8 September 1986
17 November 2008 |
| South Africa}} | 1 | Bob Hewitt
Frew McMillan
Danie Visser
Pieter Aldrich | 1 March 1976
25 April 1977
29 January 1990
23 July 1990 |
| Spain}} | 1 | Emilio Sánchez | 3 April 1989 |
| Sweden}} | 1 | Anders Järryd
Stefan Edberg
Jonas Björkman | 12 August 1985
9 June 1986
9 July 2001 |
| Switzerland}} | 8 | Marc Rosset | 2 November 1992 |
| United Kingdom}} | 1 | Jamie Murray | 4 April 2016 |
| United States}} | 1 | John McEnroe
Stan Smith
Peter Fleming
Robert Seguso
Ken Flach
Jim Grabb
Jim Pugh
Rick Leach
David Pate
Kelly Jones
Richey Reneberg
Patrick Galbraith
Jonathan Stark
Jared Palmer
Alex O'Brien
Donald Johnson
Bob Bryan
Mike Bryan | 27 April 1981
2 March 1981
1 February 1982
9 September 1985
14 October 1985
12 June 1989
19 June 1989
26 March 1990
14 January 1991
12 October 1992
1 February 1993
18 October 1993
1 August 1994
20 March 2000
8 May 2000
28 January 2002
8 September 2003
8 September 2003 |
| Zimbabwe}} | 1 | Byron Black | 14 February 1994 |
| Nation | Ranking | Player(s) | Date reached |
|---|
| Argentina}} | 1 | Paola Suárez
Gisela Dulko | 9 September 2002
1 November 2010 |
| Australia}} | 1 | Rennae Stubbs
Samantha Stosur | 21 August 2000
6 February 2006 |
| Belarus}} | 1 | Natasha Zvereva | 7 October 1991 |
| Canada}} | 6 | Jill Hetherington | 27 March 1989 |
| Belgium}} | 1 | Kim Clijsters | 4 August 2003 |
| China}} | 1 | Peng Shuai | 17 February 2014 |
| Chinese Taipei}} | 1 | Hsieh Su-wei
Latisha Chan | 12 May 2014
23 October 2017 |
| Croatia}} | 19 | Mirjana Lučić-Baroni | 26 October 1998 |
| Czech Republic}} | 1 | Helena Suková
Jana Novotná
Květa Peschke
Lucie Šafářová | 5 February 1990
27 August 1990
4 July 2011
21 August 2017 |
| France}} | 1 | Julie Halard-Decugis | 11 September 2000 |
| Hungary}} | 1 | Tímea Babos | 20 August 2018 |
| India}} | 1 | Sania Mirza | 13 April 2015 |
| Indonesia}} | 9 | Yayuk Basuki | 6 July 1998 |
| Italy}} | 1 | Flavia Pennetta
Sara Errani
Roberta Vinci | 28 February 2011
10 September 2012
15 October 2012 |
| Japan}} | 1 | Ai Sugiyama | 23 October 2000 |
| Kazakhstan}} | 3 | Yaroslava Shvedova | 23 February 2016 |
| Latvia}} | 1 | Larisa Neiland | 27 January 1992 |
| Macedonia}} | 137 | Lina Gjorcheska | 31 October 2016 |
| Montenegro}} | 67 | Danka Kovinić | 20 June 2016 |
| Peru}} | 27 | Laura Arraya | 28 March 1988 |
| Poland}} | 16 | Agnieszka Radwańska | 10 October 2011 |
| Romania}} | 11 | Monica Niculescu | 2 April 2018 |
| Russia}} | 1 | Anna Kournikova
Ekaterina Makarova
Elena Vesnina | 22 November 1999
11 June 2018
11 June 2018 |
| Serbia}} | 19 | Jelena Janković | 9 June 2014 |
| Slovakia}} | 3 | Janette Husárová | 21 April 2003 |
| Slovenia}} | 1 | Katarina Srebotnik | 4 July 2011 |
| South Africa}} | 4 | Liezel Huber1 | 4 July 2005 |
| Spain}} | 1 | Arantxa Sánchez Vicario
Virginia Ruano Pascual | 19 October 1992
8 September 2003 |
| Sweden}} | 27 | Johanna Larsson | 24 October 2016 |
| Switzerland}} | 1 | Martina Hingis | 8 June 1998 |
| Thailand}} | 15 | Tamarine Tanasugarn | 13 September 2004 |
| Turkey}} | 53 | İpek Şenoğlu | 19 October 2009 |
| Ukraine}} | 9 | Elena Tatarkova
Kateryna Bondarenko | 5 July 1999
20 October 2008 |
| United States}} | 1 | Martina Navratilova
Pam Shriver
Gigi Fernández
Lindsay Davenport
Corina Morariu
Lisa Raymond
Liezel Huber
Serena Williams
Venus Williams
Bethanie Mattek-Sands | 4 September 1984
18 March 1985
4 March 1991
20 October 1997
3 April 2000
12 June 2000
12 November 2007
7 June 2010
7 June 2010
9 January 2017 |
| Zimbabwe}} | 1 | Cara Black | 17 October 2005 |
1. ^{{Cite news|url=http://indianexpress.com/article/sports/tennis/garbine-muguruza-joins-rafael-nadal-as-world-no-1-4839088/|title=Garbine Muguruza joins Rafael Nadal as World No 1|date=2017-09-11|work=The Indian Express|access-date=2017-09-26|language=en-US}}