Thiago Monteiro (tennis)
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Thiago Moura Monteiro (; born 31 May 1994) is a Brazilian professional
tennis Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between two teams of two players each (doubles (tennis), doubles). Each player uses a tennis racket st ...
player. He has a career-high ATP singles ranking of world No. 61, achieved on 17 October 2022 and a doubles ranking of No. 144, achieved on 31 January 2022. He is currently the No. 3 player from Brazil. On the ITF Junior Circuit, Monteiro had a combined ranking of No. 2, attained on February 2012. His best junior singles result was the 2011 Copa Gerdau (Grade A) title in
Porto Alegre Porto Alegre (, ; , ; ) is the capital and largest city of the Brazilian Federative units of Brazil, state of Rio Grande do Sul. Its population of roughly 1.4 million inhabitants (2022) makes it the List of largest cities in Brazil, 11th-most p ...
, Brazil.


Early life and background

Thiago Moura Monteiro was born on 31 May 1994 in
Fortaleza Fortaleza ( ; ; ) is the state capital of Ceará, located in Northeast Region, Brazil, Northeastern Brazil. It is Brazil's 4th largest city—Fortaleza surpassed Salvador, Bahia, Salvador in 2022 census with a population of slightly over 2.4 mi ...
, Brazil. His first introduction to tennis happened when he watched a
Gustavo Kuerten Gustavo "Guga" Kuerten (; born 10 September 1976) is a Brazilian former professional tennis player. He was ranked as the list of ATP number 1 ranked singles tennis players, world No. 1 in men's singles by the Association of Tennis Professionals f ...
match on TV with his brother. Monteiro used to train football at a sports academy where his brother played tennis. He played it for the first time when his brother invited him to a hitting session. Thiago soon started training and playing in local tournaments: in early 2004, he won his first tournament, being only nine years old. Thiago would leave his hometown, Fortaleza, in late 2008 to enter the Larri Passos Academy in
Balneário Camboriú Balneário Camboriú () is a coastal city in the southern Brazilian state of Santa Catarina. The city is built on steep hills which drop down to the sea. It is a popular tourist destination for South Americans, who are drawn to its main ocean b ...
to improve his game. He later said on interviews that he would probably be a football player if he had not made that change.


Junior career

Thiago Monteiro had a successful junior career, winning many tournaments. Monteiro peaked in the ITF Junior Circuit rankings at No. 2 on 2 February 2012. He ended his junior career with a 77–31 win record on singles and 47–32 on doubles. In 2004, being ten years old, Thiago won the Paraíba Tour Tournament. In 2005, Monteiro won the Fortaleza Cup by beating Evandro Alencar in straight sets in the final. In 2006, he captured the first of three titles at the Banana Bowl, in the category u12. 2008 was a very successful year for Monteiro, both in singles and doubles. He won the South-America Tournament of Nations, the Torneio Brasileirão, the Guanabara Open de Tênis (4th and 5th stage), all singles tournaments; and the 1st and 2nd stage of Torneio Nacional Rota-do-Sol (both in singles and doubles). Monteiro also conquered his second Banana Bowl title, category u14. Later that year, Thiago was awarded with Troféu Jornalista Flávio Ponte, at the category Personalidade Esportiva do Ano (''Sports Personality of the Year''). To focus on his tennis career, Thiago moved from his hometown in
Fortaleza Fortaleza ( ; ; ) is the state capital of Ceará, located in Northeast Region, Brazil, Northeastern Brazil. It is Brazil's 4th largest city—Fortaleza surpassed Salvador, Bahia, Salvador in 2022 census with a population of slightly over 2.4 mi ...
, to
Balneário Camboriú Balneário Camboriú () is a coastal city in the southern Brazilian state of Santa Catarina. The city is built on steep hills which drop down to the sea. It is a popular tourist destination for South Americans, who are drawn to its main ocean b ...
, in Santa Catarina. This change led Thiago to conquer multiple titles in 2009: Copa Claro (3rd stage) and Credicard MasterCard Junior Cup (2nd and 3rd stage), in singles tournaments, and the doubles titles at XIV Goodyear Junior Cup and the Eddie Herr Tennis Championship. Monteiro was also runner-up at the G1 tournament, Orange Bowl, playing in the singles draw. This same year, he won his first points on the
ATP rankings The PIF ATP Rankings (previously known as the Pepperstone ATP Rankings) are the merit-based method used by the Association of Tennis Professionals (ATP) for determining the qualification for entry as well as the seeding of players in all single ...
by playing two Futures events in the doubles category. Starting in 2010, Thiago was number one in both CBT and COSAT ranking. He won his third and final title at the 40th edition of the Banana Bowl, this time in the u16 category, and also made his debut on the ATP Singles Rankings, with his participation in a Future in his birthplace, in
Fortaleza Fortaleza ( ; ; ) is the state capital of Ceará, located in Northeast Region, Brazil, Northeastern Brazil. It is Brazil's 4th largest city—Fortaleza surpassed Salvador, Bahia, Salvador in 2022 census with a population of slightly over 2.4 mi ...
. In 2011, Thiago started the year winning the Grade A Copa Gerdau in
Porto Alegre Porto Alegre (, ; , ; ) is the capital and largest city of the Brazilian Federative units of Brazil, state of Rio Grande do Sul. Its population of roughly 1.4 million inhabitants (2022) makes it the List of largest cities in Brazil, 11th-most p ...
, one of the most important tournaments on the ITF Junior Circuit. At 17 years old, Monteiro also won three other clay tournaments: the Asuncion Bowl, the Astrid Bowl, and the Offenbach Tournament. In this last one, he defeated Matias Sborowitz on the final in straight sets. Thiago didn't achieve much success in singles Grand Slams as a junior: his best results were reaching the third round at the
Wimbledon Championships The Wimbledon Championships, commonly called Wimbledon, is a tennis tournament organised by the All England Lawn Tennis and Croquet Club in collaboration with the Lawn Tennis Association annually in Wimbledon, London. It is chronologically the ...
in 2011 and 2012
French Open The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
. He had a better run at doubles: reaching the quarterfinals of the
Australian Open The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
and the semifinals at the
French Open The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
, both in 2012. Monteiro's last match as a junior was at the 2012 US Open.


Professional career


2011–2013: Early career

In late 2011, Thiago won his first professional title, the Bahia Open, a Future tournament with US$10,000 in money prize. He battled past his training partner Alexandre Schnitman, winning in close, straight sets. This win led Thiago to receive a wildcard entry on the main draw of
Aberto de São Paulo The Aberto de São Paulo was a tennis tournament played on outdoor hard courts. It was part of the ATP Challenger Tour. It was held annually at the Villa-Lobos State Park, Parque Villa Lobos in São Paulo, Brazil, since 2001. All the Brazilia ...
, but he was eliminated on the first round by compatriot
André Ghem André Swytka Ghem (born 29 May 1982) is a former Brazilian professional tennis player. He reached his highest ATP singles ranking in July 2015, when he became the World No. 118. Career Born in Porto Alegre, Brazil, Ghem became the World No. ...
. 2012 was the last junior year for Monteiro. He played in all junior Grand Slams except Wimbledon and focused on Futures and Challengers tournaments. Monteiro managed to qualify at 2012 Aberto de Florianópolis, in late February, but he was eliminated in the first round by Thiago Alves. In late May, Thiago won his second Futures title, this time on clay, in
Bauru Bauru () is a Brazilian municipality located in the interior of São Paulo state, recognized as the most populous city in the Central-West region of São Paulo. It is one of the 19 municipalities comprising the Bauru Immediate Geographic Region ...
. The final was a thrilling three-hour victory over
Leonardo Kirche Leonardo Kirche (born 4 January 1985) is a Brazilian tennis player playing on the ATP Challenger Tour. He has played one match for the Brazil Davis Cup team The Brazil national tennis team represents Brazil in Davis Cup tennis competition an ...
, with Monteiro winning despite losing the first set. The Brazilian was runner-up on two other Futures played in Brazil: at
São José do Rio Preto São José do Rio Preto () is a Municipalities of Brazil, municipality in the São Paulo (state), state of São Paulo, Brazil. It is located in the northwestern region of the state, approximately from the city of São Paulo and from Brasília ...
in August and at
Porto Alegre Porto Alegre (, ; , ; ) is the capital and largest city of the Brazilian Federative units of Brazil, state of Rio Grande do Sul. Its population of roughly 1.4 million inhabitants (2022) makes it the List of largest cities in Brazil, 11th-most p ...
in October. Thiago ended the year with a career ranking of 439, after starting the year at the position 701. Entering 2013 as the first year that Thiago would play a full season as a senior professional, he was invited a second time to enter
Aberto de São Paulo The Aberto de São Paulo was a tennis tournament played on outdoor hard courts. It was part of the ATP Challenger Tour. It was held annually at the Villa-Lobos State Park, Parque Villa Lobos in São Paulo, Brazil, since 2001. All the Brazilia ...
main draw, but couldn't make it past the first round again, losing to countryman
Guilherme Clezar Guilherme Sarti Clezar (pronounced ''Clézar''; born 31 December 1992), is a professional tennis player from Brazil. Clezar plays mainly in ATP Challenger Tour events. He played also in several ATP 250 events, including the 2011 Brasil Open ...
in straight sets. Monteiro later played in consecutive Futures events in the United States without much success. He tried to break through the qualifiers of Brasil Open a month later, but lost to Thiago Alves in the first round. In March, Thiago did a very successful run in Turkey: he won two back-to-back Futures, with 15 consecutive victories over two weeks. His first title there was against Czech Jan Minar, winning in straight sets. A week later, he defeated the Dominican José Hernández also in straight sets. He also won his first Futures title in doubles, partnering Maximiliano Estévez, from
Argentina Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...
, defeating in the finals the partnership of Kirill Dmitriev and
Yaraslav Shyla Yaraslav Iharavich Shyla (; ; born 5 March 1993 in Minsk) is a Belarusian tennis player. Shyla has a career high ATP singles ranking of 306 achieved on 22 June 2015. He also has a career high ATP doubles ranking of 164 achieved on 15 June 2015. ...
in the super tiebreak. Thiago would also reach the finals of another Futures event, this time in the Netherlands, in June, but he couldn't win his 5th title. He lost in the final to
Bjorn Fratangelo Bjorn Fratangelo ( ; born July 19, 1993) is an American tennis coach and former professional player. In 2011, he won the boys' singles title at the French Open defeating Dominic Thiem. Fratangelo was only the second American to win the event, f ...
in three sets. Thiago broke through multiple Challenger qualifiers later in the year, including Sport 1 Open in Netherlands, the
Poznań Open The Poznań Open, known as the Enea Poznań Open, is a professional tennis tournament played on outdoor red clay courts. It is currently part of the Association of Tennis Professionals The Association of Tennis Professionals (ATP) is the govern ...
in Poland, the
Oberstaufen Cup The Oberstaufen Cup was a professional tennis tournament played on outdoor red clay courts. It has been part of the Association of Tennis Professionals (ATP) ATP Challenger Tour, Challenger Tour. It was held annually in Oberstaufen, Germany, from ...
in Germany, and the
Uruguay Open The Uruguay Open is a tennis tournament held in Montevideo, Uruguay since 2005. The event is part of the ATP Challenger Tour and is played on outdoor clay court A clay court is one of the types of tennis court on which the sport of tennis is p ...
. His best results were in the quarterfinals in Germany and Netherlands, a performance he also achieved in IS Open and Aberto Rio Preto, but he didn't need to play the qualifiers in the latter. In doubles, Thiago reached the finals of Tetra Pak Tennis Cup partnering Thiago Alves, but they lost in straight sets against the
Argentinian Argentines, Argentinians or Argentineans are people from Argentina. This connection may be residential, legal, historical, or cultural. For most Argentines, several (or all) of these connections exist and are collectively the source of their ...
team of
Guido Andreozzi Guido Andreozzi (; ; born 5 August 1991) is an Argentine professional tennis player of Italian descent. His career-high rankings are world No. 70 in singles, achieved on 28 January 2019 and No. 47 in doubles, reached on 19 May 2025. He has won tw ...
and
Máximo González Máximo González Mereira (; born July 20, 1983) is an Argentine professional tennis player. His career-high singles ranking is World No. 58, achieved in July 2009 and his career-high doubles ranking is World No. 10 achieved on 11 September 2023 ...
. He also reached the semifinals of IS Open and Aberto Rio Preto, partnering Thiago Alves in the first and
Rogério Dutra Silva Rogério Dutra da Silva (; born February 3, 1984) is a former Brazilian professional tennis player. Dutra Silva had a career high ATP singles ranking of 63 achieved on July 24, 2017 and a career high ATP doubles ranking of 84 achieved on Febru ...
in the latter, achieving his career high in the doubles ranking: 449th. He ended in the 276th position in the singles ranking.


2014–2015: Injuries, second doubles title

Thiago's year started only in late February due to an injury on his left knee. He attempted to qualify to Brasil Open, but lost in the second round to
Dušan Lajović Dušan Lajović ( sr-Cyrl, Душан Лајовић; born 30 June 1990) is a Serbian professional tennis player. On 29 April 2019, he reached his career-high singles ranking of world No. 23. On 21 September 2020, he peaked at No. 82 in the doubl ...
in straight sets. In March, Thiago qualified to Visit Panamá Cup, defeating
Alexander Zverev Alexander "Sascha" Zverev (; born 20 April 1997) is a German professional tennis player and the current world No. 3. He has won 24 ATP Tour titles in singles and two in doubles, and has been runner-up at three Grand Slam (tennis)#Tournaments, ma ...
on his way, but Monteiro lost in the first round. Thiago's 5th Futures title came in late June, in the Netherlands, where he defeated
Boy Westerhof Boy Westerhof (born 25 October 1985) is a Dutch professional tennis player and competes mainly on the ATP Challenger Tour and ITF Futures, both in singles and doubles. Westerhof reached his highest ATP singles ranking, No. 201 on 27 August 2012, ...
in three sets. Thiago was not able to repeat his runs in the Challenger Tour as he did in 2013. His rank dropped down to 563rd by the end of the year. In doubles, Thiago reached the finals of two Futures (one in Netherlands, one in
Dominican Republic The Dominican Republic is a country located on the island of Hispaniola in the Greater Antilles of the Caribbean Sea in the Atlantic Ocean, North Atlantic Ocean. It shares a Maritime boundary, maritime border with Puerto Rico to the east and ...
), but wasn't able to win his 2nd title in either. Trying to recover his positions in the
ATP rankings The PIF ATP Rankings (previously known as the Pepperstone ATP Rankings) are the merit-based method used by the Association of Tennis Professionals (ATP) for determining the qualification for entry as well as the seeding of players in all single ...
, Thiago tried to break through multiple qualifiers of
ATP World Tour The ATP Tour (known as ATP World Tour between January 2009 and December 2018) is the sole worldwide top-tier tennis tour for men organized by the Association of Tennis Professionals (ATP) founded in 1990 that replaced the earlier dual Grand Pri ...
tournaments. He attempted to do so in clay events, reaching the final qualifying round in the
Argentina Open The Argentina Open or Abierto Argentino is an annual ATP men's tennis event held in Buenos Aires, Argentina. The tournament is listed as an ATP 250 on the ATP Tour, and is played on outdoor clay courts at the 5,500 capacity Buenos Aires Lawn Ten ...
and the U.S. Men's Clay Court Championships, losing respectively to
Facundo Bagnis Facundo Bagnis (; born 27 February 1990) is an Argentine professional tennis player. He has a career-high singles ranking of World No. 55 reached in November 2016. Bagnis competes mainly on the ATP Challenger Tour where he has won 17 singles Chal ...
and
Rogério Dutra Silva Rogério Dutra da Silva (; born February 3, 1984) is a former Brazilian professional tennis player. Dutra Silva had a career high ATP singles ranking of 63 achieved on July 24, 2017 and a career high ATP doubles ranking of 84 achieved on Febru ...
. While his run on qualifiers wasn't much successful on the ATP World Tour, Thiago had better success at the
ATP Challenger Tour The ATP Challenger Tour (known until the end of 2008 as the ATP Challenger Series) is a series of international men's professional tennis tournaments. It was founded in 1976 as a replacement for the ILTF Satellite Circuit (founded in 1971) as ...
. Over the year, Thiago entered 11 qualifier draws, breaking through 5 of them. Monteiro's also played his last Futures event to date, playing two weeks in Georgia in both singles and doubles. Partnering with the Italian
Marco Bortolotti Marco Bortolotti (born 21 January 1991) is an Italian tennis player who specializes in doubles. He has a career high ATP doubles ranking of world No. 87 achieved on 19 August 2024. Bortolotti has won nine ATP Challenger The ATP Challenger ...
, the left-hander won his 2nd Futures title by defeating the Russian partnership of Victor Badula and Ivan Kalinin in straight sets. Almost a month later, playing in the qualifiers of Poprad-Tatry ATP Challenger Tour, Thiago badly injured his left knee while holding a match point against
Czech Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture ** Czech cuisine * One of three mythical brothers, Lech, Czech, and Rus *Czech (surnam ...
Robin Stanek and was forced to retire. He stayed away from the courts for three months, returning in the
Campeonato Internacional de Tênis de Campinas The Campeonato Internacional de Tênis de Campinas (formerly known as Tetra Pak Tennis Cup) is a tennis List of tennis tournaments, tournament held in Campinas, Brazil, since 2011. The event is part of the ATP Challenger Tour and is played on ou ...
qualifiers. Monteiro lost in the final qualifying round to Tiago Lopes in three sets. The Brazilian best run at a Challenger event was in November, at the Challenger Ciudad de Guayaquil, passing through the qualifiers and reaching the quarter-finals, where he had to retire against the eventual runner-up,
Guido Pella Guido Pella (; born 17 May 1990) is an Argentine former professional tennis player. In August 2019, Pella reached his career best world No. 20 in singles. In July 2019, he peaked at No. 55 in doubles. Personal life His father, Carlos, taught hi ...
. Thiago ended in the 470th position in the singles ranking.


2016: ATP Tour and top 100 debut, first Challenger title

Ranked at the beginning of the year at No. 463, Thiago started strong, qualifying to Torneo de Mendoza main draw and reaching the quarterfinals, where Monteiro lost to eventual champion
Gerald Melzer Gerald Melzer (born 13 July 1990) is an Austrian professional inactive tennis player who competed mainly on the ATP Challenger Tour. He achieved a career-high singles ranking of world No. 68 in November 2016. Gerald is also part of Austrian Da ...
in straight sets. The left-hander received a wildcard invite to Vivo Tennis Cup main draw, where he reached the semifinals of a Challenger event for the first time, losing again to the 'would-be' champion of the tournament, this time to
Facundo Bagnis Facundo Bagnis (; born 27 February 1990) is an Argentine professional tennis player. He has a career-high singles ranking of World No. 55 reached in November 2016. Bagnis competes mainly on the ATP Challenger Tour where he has won 17 singles Chal ...
. This performance led him to receive a wildcard into
Rio Open The Rio Open, also known as the ''Rio Open presented by Claro'' for sponsorship reasons, is a tennis event on the ATP Tour and former WTA International Tournaments event. The tournament is played on outdoor clay courts at the Jockey Club Brasile ...
main draw where he would face
Jo-Wilfried Tsonga Jo-Wilfried Tsonga (; born 17 April 1985) is a French former professional tennis player. He was ranked as high as world No. 5 by the Association of Tennis Professionals (ATP), which he achieved in February 2012. Tsonga won 18 singles titles on th ...
, the third seed and world No. 9 at the time. Thiago (ranked No. 338) stunned Tsonga in three sets, to set a meeting with
Pablo Cuevas Pablo Gabriel Cuevas Urroz (; born January 1, 1986) is a Uruguayan tennis coach and a former professional player. Cuevas won the 2008 French Open – Men's doubles, 2008 French Open men's doubles title with Luis Horna, and was especially noted t ...
. Monteiro lost in straight sets, and his opponent won the tournament, defeating
Guido Pella Guido Pella (; born 17 May 1990) is an Argentine former professional tennis player. In August 2019, Pella reached his career best world No. 20 in singles. In July 2019, he peaked at No. 55 in doubles. Personal life His father, Carlos, taught hi ...
in the final. The surprise performance led Monteiro to receive a second wildcard, this time to play into Brasil Open main draw. Thiago started strong, defeating two Spaniards,
Nicolás Almagro Nicolás Almagro Sánchez (; born 21 August 1985 in Murcia, Spain) is a Spanish former professional tennis player of Latin American descent. He reached the quarterfinals of the French Open in 2008 French Open – Men's singles, 2008, 201 ...
in the first round and
Daniel Muñoz de la Nava Daniel Muñoz de la Nava (; born 29 January 1982 in Madrid, Spain) is a Spanish professional tennis player Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), si ...
in the second, to reach the third round and set another battle against Pablo Cuevas. Thiago triumphed in the first set this time, but Cuevas turned the game and won the match. Cuevas also won this tournament, beating
Pablo Carreño Busta Pablo Carreño Busta (; born 12 July 1991) is a Spanish professional tennis player. He has been ranked as high as world No. 10 by the ATP, which he first achieved on 11 September 2017. He also reached a best doubles ranking of No. 16 on 17 July ...
in the final. After rising 98 positions in the rankings, Thiago returned to play on Challenger events, this time all over America. Playing in four tournaments, he reached the semifinals in two of them. The first one was the Challenger ATP Cachantún Cup, where he lost to countryman
Rogério Dutra Silva Rogério Dutra da Silva (; born February 3, 1984) is a former Brazilian professional tennis player. Dutra Silva had a career high ATP singles ranking of 63 achieved on July 24, 2017 and a career high ATP doubles ranking of 84 achieved on Febru ...
, in March. The other semifinal was his second Challenger event in Brazil in 2016, the São Paulo Challenger de Tênis, where seeded third, he lost to
Gonzalo Lama Gonzalo Andrés Lama Feliu (; born 27 April 1993 in Santiago) is a former Chilean professional tennis player. His best singles ranking was 160 in June 2016. He won two Challengers (Cali and São Paulo), along with fourteen futures, twelve in sin ...
in three sets. Returning to Europe, Thiago entered the Open du Pays d'Aix draw unseeded, and with a strong performance, he conquered the title by beating
Carlos Berlocq Carlos Alberto Berlocq (; born February 3, 1983) is an Argentine former professional tennis player and coach nicknamed ''Charly'', ''Panther'' and ''Warlocq''. Berlocq's career-high singles ranking was World No. 37, achieved in March 2012. His ...
in the final. Thiago played
two 2 (two) is a number, numeral and digit. It is the natural number following 1 and preceding 3. It is the smallest and the only even prime number. Because it forms the basis of a duality, it has religious and spiritual significance in many ...
other tournaments without the same success, before entering the
French Open The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
qualifying draw as the 30th seed. Monteiro was beaten in straight sets by
Ruben Bemelmans Ruben Bemelmans (; born 14 January 1988) is a Belgians, Belgian coach and former professional tennis player. He has a career-high Association of Tennis Professionals, ATP ranking of world No. 84 in singles, achieved on 28 September 2015, and wo ...
. A week later, Monteiro had a rematch with Bemelmans in the first round of the
Franken Challenge The Franken Challenge (former Schickedanz Open) is a professional tennis tournament played on outdoor red clay courts. It is currently part of the Association of Tennis Professionals (ATP) Challenger Tour. It is held annually in Fürth, Germany, ...
, defeating him in straight sets. Thiago later lost in the quarterfinals to
Tobias Kamke Tobias Kamke (born 21 May 1986) is a German former professional tennis player. He was ranked as high as world No. 64 in singles by the Association of Tennis Professionals (ATP), which he first achieved in January 2011. In 2010, Kamke was awarde ...
. Playing in another clay tournament in France, Monteiro reached a second Challenger final, this time at the Open Sopra Steria de Lyon. Seeded 5th, he faced another Belgian this time,
Steve Darcis Steve Darcis (, born 13 March 1984) is a Belgian coach and former professional tennis player. In his career, he won two ATP titles and achieved a career-high singles ranking of world No. 38 on 22 May 2017. Personal life Steve Darcis was born i ...
. The left-hander took the first set, but the Belgian grew in the match, turning it into three sets. Before attempting to qualify for his second Grand Slam, Monteiro played at the
Internationaux de Tennis de Blois The Internationaux de Tennis de Blois is a tennis List of tennis tournaments, tournament held in Blois, France, since 2013. The event is part of the ATP Challenger Tour and is played on clay courts. Past finals Singles Doubles References ...
but withdrew from the second round match against
Miljan Zekić Miljan Zekić ( sr-Cyrl, Миљан Зекић, ; born 12 July 1988) is a Serbian tennis Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between tw ...
, citing a back injury. At the
Wimbledon Championships The Wimbledon Championships, commonly called Wimbledon, is a tennis tournament organised by the All England Lawn Tennis and Croquet Club in collaboration with the Lawn Tennis Association annually in Wimbledon, London. It is chronologically the ...
qualifying, Thiago was eliminated again in the first round, this time to
Julian Reister Julian Reister (; born 2 April 1986) is a German retired professional tennis player. His career-high singles ranking is world No. 83, achieved in November 2013. Reister reached the quarterfinals of Buenos Aires in 2013 as a qualifier. Career 20 ...
. To improve his position in the ATP rankings, Thiago attempted and qualified for the German Open main draw. The Brazilian won three matches against three
Germans Germans (, ) are the natives or inhabitants of Germany, or sometimes more broadly any people who are of German descent or native speakers of the German language. The Basic Law for the Federal Republic of Germany, constitution of Germany, imple ...
players (two in the qualifiers, and
Mischa Zverev Mikhail "Mischa" Alexandrovich Zverev. (born 22 August 1987) is a German retired professional tennis player. He achieved a career-high singles ranking of world No. 25 on 24 July 2017. At the 2017 Australian Open, Zverev defeated world No. 1 An ...
in the main draw), to set a third match against
Pablo Cuevas Pablo Gabriel Cuevas Urroz (; born January 1, 1986) is a Uruguayan tennis coach and a former professional player. Cuevas won the 2008 French Open – Men's doubles, 2008 French Open men's doubles title with Luis Horna, and was especially noted t ...
. Cuevas delivered Monteiro's third loss in the ATP World Tour, but this time he did not win the tournament, being runner-up instead. Thiago qualified for a consecutive World Tour appearance this time at Swiss Open Gstaad. Monteiro was defeated by
Robin Haase Robin Haase (; born 6 April 1987) is a Dutch professional tennis player. He reached his career-high Association of Tennis Professionals, ATP singles ranking of world No. 33 in July 2012 and his highest doubles ranking of world No. 29 in May 2023 ...
in the third round. The Brazilian defeated Antoine Bellier in the first round and the second seed, and top 30
Gilles Simon Gilles Simon (; born 27 December 1984) is a French former tennis player. He turned professional in 2002 and won fourteen singles titles on the ATP Tour, and attained a career-high ATP singles ranking of No. 6, on 5 January 2009. Personal li ...
in the second round. Attempting to break into the top 100, Monteiro entered as the top seed in the BB&T Atlanta Open qualifiers. He breezed past American Trent Bryde, winning in straight sets and recording a
bagel A bagel (; ; also spelled beigel) is a bread roll originating in the Jewish communities of Poland. Bagels are traditionally made from yeasted wheat dough that is shaped by hand into a torus or ring, briefly boiled in water, and then baked. ...
, but lost to
Christopher Eubanks Christopher Eubanks ( ; born May 5, 1996) is an American professional tennis player. He played college tennis for the Georgia Tech Yellow Jackets men's tennis, Georgia Tech Yellow Jackets. There, he was a two-time All-American and twice named A ...
in straight sets, at the final round. However,
Rajeev Ram Rajeev Ram ( ; born March 18, 1984) is an American professional tennis player. He has been ranked world No. 1 in men's doubles by the Association of Tennis Professionals (ATP). Ram is a six-time major champion, having won the 2020 Australian O ...
withdrew from the tournament, and Monteiro was awarded a
lucky loser A lucky loser is a sports competitor (player or team) who loses a match in a knockout tournament or loses in qualifying, but who then enters the main draw. This can occur when another competitor withdraws during the tournament because of illness ...
entry into the main draw. Unfortunately for Thiago, he didn't have the same luck during the first round match, against
Tim Smyczek Timothy Allen Salazar Smyczek ( ; ; born December 30, 1987) is an American former professional tennis player. He made three quarterfinals on the main tour as well as the semi-finals of Newport in 2018. Additionally he won seven Challenger title ...
. Monteiro had the opportunity to serve for the match at 5–4 during the second set, but Smyczek denied his chances and won the match in three sets. Thiago also did his debut in doubles in Atlanta, playing with
Yoshihito Nishioka is a Japanese professional tennis player. He has won three ATP Tour singles titles and achieved a career-high ATP singles ranking of world No. 24 on 19 June 2023. He is currently the No. 2 Japanese player. Personal life Marriage Nishioka marr ...
, but they lost at the super tiebreak against American partnership of Zack Kennedy and Christopher Eubanks. A week later, Thiago entered directly into the main draw of an ATP event for the first time, the
Los Cabos Open The Los Cabos Open is a professional men's tennis tournament played on outdoor hard courts. It is part of the ATP Tour 250 series of the Association of Tennis Professionals (ATP) Tour. It is held annually in August in Los Cabos, Baja California S ...
; but lost in the first round to
Dušan Lajović Dušan Lajović ( sr-Cyrl, Душан Лајовић; born 30 June 1990) is a Serbian professional tennis player. On 29 April 2019, he reached his career-high singles ranking of world No. 23. On 21 September 2020, he peaked at No. 82 in the doubl ...
in straight sets. Thiago finally broke the Top 100 milestone after winning in the first round of the Western & Southern Open qualifiers against veteran
Ivan Dodig Ivan Dodig (; born 2 January 1985) is a Croatian professional tennis player who specializes in doubles. He reached his career-high doubles ranking of World No. 2 in September 2023. He is a seven-time Grand Slam champion, having won men's double ...
in straight sets. However, Thiago failed to qualify as he lost in the final round to
Jiří Veselý Jiří Veselý (; born 10 July 1993) is a Czech professional tennis player. He reached a career-high singles ranking of world No. 35 on 27 April 2015. Youth career Veselý reached the No. 1 junior combined world ranking in January 2011, co ...
in three sets. The win also won Monteiro the second spot in the Brazilian Top 10 singles for the first time in his career. Later at the end of August, Thiago tried to qualify at the
US Open U.S. Open or US Open are open championship sporting tournaments that are hosted in the United States and in which anyone, especially amateur and professional, or American and non-American, may compete. The term may also be applied to non-sporting ev ...
, but for the third time in the qualifiers, he lost at the first round. After the US Open, Thiago was invited for the first time to play in the
Davis Cup The Davis Cup is the premier international team event in men's tennis. It is organised by the International Tennis Federation (ITF) and contested annually between teams from over 150 competing countries, making it the world's largest annual ...
. He entered the team to play against
Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
, opening the rubbers against
David Goffin David Goffin (; born 7 December 1990) is a Belgian professional tennis player. He reached a career-high singles ATP rankings, ranking of world No. 7, making him the highest ranked male player from Belgium in tennis history. He is also the first ...
. Monteiro lost in straight sets, and Brazil finished the series 0–4. Following his unsuccessful run at the Davis Cup, Thiago entered the Campeonato Internacional de Tenis de Santos as the 2nd seed. He went on to his third Challenger final, losing in straight sets to
Renzo Olivo Renzo Olivo (; born 15 March 1992) is an Argentine professional tennis player. He competes mainly on the ATP Challenger Tour and ITF Futures, both in singles and doubles. He has a career-high singles ranking of World No. 78 achieved on 9 January ...
. Thiago ended his year with two other quarterfinals (
Campinas Campinas (, ''Plains'' or ''Meadows'') is a Brazilian Municipalities of Brazil, municipality in São Paulo (state), São Paulo State, part of the country's Southeast Region, Brazil, Southeast Region. According to the 2020 estimate, the city's popul ...
and
Buenos Aires Buenos Aires, controlled by the government of the Autonomous City of Buenos Aires, is the Capital city, capital and largest city of Argentina. It is located on the southwest of the Río de la Plata. Buenos Aires is classified as an Alpha− glob ...
) and a semifinal (
Santiago Santiago (, ; ), also known as Santiago de Chile (), is the capital and largest city of Chile and one of the largest cities in the Americas. It is located in the country's central valley and is the center of the Santiago Metropolitan Regi ...
) appearance at Challenger events.


2017: ATP 500 quarterfinal, major debut, first wins

Thiago started his year at
Chennai Open Chennai, also known as Madras ( its official name until 1996), is the capital and largest city of Tamil Nadu, the southernmost state of India. It is located on the Coromandel Coast of the Bay of Bengal. According to the 2011 Indian ce ...
, losing in the first round to
Daniil Medvedev Daniil Sergeyevich Medvedev ( rus, Даниил Сергеевич Медведев, p=dənʲɪˈil sʲɪrˈɡʲe(j)ɪvʲɪtɕ mʲɪdˈvʲedʲɪf; born 11 February 1996) is a Russian professional tennis player. He has been ranked as the List of ...
. A week later, he entered the
Sydney International The Sydney International (formerly known as the Championship of New South Wales and New South Wales Open, with various title sponsors), formerly sponsored as the Apia International Sydney from 2012 to 2017, was a professional tennis tournament ...
qualifiers drew and passed through it, but he came short again in the first round, losing to Daniel Evans. Ranked No. 83, Thiago's ranking was enough for him to enter the
Australian Open The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
main draw directly. He set a rematch against
Jo-Wilfried Tsonga Jo-Wilfried Tsonga (; born 17 April 1985) is a French former professional tennis player. He was ranked as high as world No. 5 by the Association of Tennis Professionals (ATP), which he achieved in February 2012. Tsonga won 18 singles titles on th ...
but could not reproduce the tennis from their first match, losing in four sets. Entering the Ecuador Open, Monteiro's performance was disappointing; he lost another match in the first round, this time to
Giovanni Lapentti Giovanni Lapentti Gómez (; born 25 January 1983) is a retired Ecuadorian tennis player. His brother is Nicolás Lapentti, another professional tennis player, while a third brother, Leonardo, has also been active at the lower levels of professio ...
. He also entered the doubles draw there, playing with
Thomaz Bellucci Thomaz Cocchiarali Bellucci (born 30 December 1987, in Tietê, São Paulo, Tietê) is a Brazilian former professional tennis player. He achieved a career-high singles ranking of World No. 21 in July 2010. Bellucci used a string of ATP Challeng ...
, but they came short in the first round. Playing on Argentinian soil, Monteiro passed the first round, defeating ex-top 10
Tommy Robredo Tomás Robredo Garcés (, ; born 1 May 1982) is a Spanish former professional tennis player. His career-high singles ranking was world No. 5, which he reached in August 2006 as a result of winning the 2006 Hamburg Masters – Singles, Hamburg M ...
en route to the quarterfinals of the
Argentina Open The Argentina Open or Abierto Argentino is an annual ATP men's tennis event held in Buenos Aires, Argentina. The tournament is listed as an ATP 250 on the ATP Tour, and is played on outdoor clay courts at the 5,500 capacity Buenos Aires Lawn Ten ...
, before losing to local player
Carlos Berlocq Carlos Alberto Berlocq (; born February 3, 1983) is an Argentine former professional tennis player and coach nicknamed ''Charly'', ''Panther'' and ''Warlocq''. Berlocq's career-high singles ranking was World No. 37, achieved in March 2012. His ...
in three sets. Monteiro made a consecutive quarterfinal appearance, this time at the ATP 500
Rio Open The Rio Open, also known as the ''Rio Open presented by Claro'' for sponsorship reasons, is a tennis event on the ATP Tour and former WTA International Tournaments event. The tournament is played on outdoor clay courts at the Jockey Club Brasile ...
, beating
Gastão Elias Gastão José Ministro Elias (; born 24 November 1990) is a Portuguese professional tennis player, who competes on the ATP Challenger Tour. In October 2016, he reached a career-high singles ranking of world No. 57 to become the third highest-ran ...
and compatriot
Thomaz Bellucci Thomaz Cocchiarali Bellucci (born 30 December 1987, in Tietê, São Paulo, Tietê) is a Brazilian former professional tennis player. He achieved a career-high singles ranking of World No. 21 in July 2010. Bellucci used a string of ATP Challeng ...
before losing to
Casper Ruud Casper Ruud (; born 22 December 1998) is a Norwegian professional tennis player. He has been ATP rankings, ranked as high as world No. 2 in men's singles by the Association of Tennis Professionals (ATP), achieved in September 2022, making him t ...
. Entering another his home tournament, the Brasil Open, Thiago lost for the second time in a row to Carlos Berlocq. A couple of weeks later, in his
Masters 1000 The ATP 1000 events, also known as ATP Masters 1000 tournaments, are an annual series of nine tennis tournaments featuring the top-ranked players on the ATP Tour since its inception in 1990. The ATP 1000 tournaments, sitting below the Grand ...
main draw debut at
Indian Wells Masters The BNP Paribas Open at Indian Wells is an annual professional tennis tournament held in Indian Wells, California, United States. It is played on outdoor hardcourts at the Indian Wells Tennis Garden, and is held in March. The tournament is pa ...
, Monteiro lost in a close match to
Martin Kližan Martin Kližan (; born 11 July 1989) is a Slovak professional tennis player. He has a career-high singles ATP rankings, ranking of world No. 24, achieved on 27 April 2015, and No. 73 in doubles, achieved on 4 May 2015. He won the 2006 French Ope ...
, losing a set point in the first set tiebreak and six break point opportunities overall. In another close match, Monteiro was also eliminated in the first round of the Miami Open, this time by
Viktor Troicki Viktor Troicki ( sr-Cyrl, Виктор Троицки, ; born 10 February 1986) is a Serbian tennis coach and a former professional player. He won three singles and two doubles titles on the ATP Tour. Troicki won his first ATP singles title at t ...
in three sets. Following the first two Masters of the season, Monteiro played two singles rubbers for his country at the
Davis Cup The Davis Cup is the premier international team event in men's tennis. It is organised by the International Tennis Federation (ITF) and contested annually between teams from over 150 competing countries, making it the world's largest annual ...
, winning both to help Brazil win 5–0 against
Ecuador Ecuador, officially the Republic of Ecuador, is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean on the west. It also includes the Galápagos Province which contain ...
, classifying his country to the World Group play-offs. Starting the spring clay court season, he entered the U.S. Men's Clay Court Championships main draw. At the maroon clay courts, Thiago defeated seventh seed Donald Young in straight sets but lost in three to
Ernesto Escobedo Ernesto "Neto" Escobedo III ( ; , born 4 July 1996) is a Mexican-American former professional tennis player who has a career high singles ranking of No. 67 achieved on 17 July 2017 and a doubles ranking of No. 296 achieved on 16 May 2022. Perso ...
. At the Barcelona Open, Thiago qualified for the main draw, but lost to Daniel Evans in the first round. A week after, in the first round of BMW Open, he lost to
Marius Copil Marius Copil (born 17 October 1990) is a Romanian professional tennis player, competing currently on the ATP Challenger Tour. His career-high singles ranking is No. 56 achieved on 28 January 2019. Copil is known for his Fastest recorded tennis s ...
. At the
2017 French Open The 2017 French Open was a tennis tournament played on outdoor clay courts. It was the 116th edition (87th as a Grand Slam) of the French Open and the second Grand Slam event of the year. It took place at the Stade Roland Garros from 28 May to 1 ...
he recorded his first win at a Major defeating wildcard
Alexandre Müller Alexandre Müller (; born 1 February 1997) is a French professional tennis player. He has a career-high ATP singles ranking of world No. 39, achieved on 7 April 2025 and a doubles ranking of No. 263, attained in November 2024. He is currently ...
. He followed this by another win at the
2017 Wimbledon Championships The 2017 Wimbledon Championships was a Grand Slam tennis tournament that took place at the All England Lawn Tennis and Croquet Club in Wimbledon, London, United Kingdom. The main draw matches commenced on 3 July 2017 and concluded on 16 July 2 ...
over qualifier
Andrew Whittington (tennis) Andrew Whittington (born 11 August 1993) is a former Australian professional tennis player. He made the world's top 200 in August 2016 following a semifinal run at the 2016 Kentucky Bank Tennis Championships. His best performance came by reach ...
.


2018: First ATP semifinal, ATP 500 quarterfinal

In February 2018, Monteiro reached his first ATP 250 semifinal in Quito, Ecuador, after defeating world No. 43, Frenchman Gaël Monfils. In the semi-final he ended up being eliminated by the No. 21 in the world, the Spaniard Albert Ramos Viñolas, with scores of 6–4, 6–7 (4) and 6–4. He then played several tournaments during the year, with poor results, until reaching the ATP 500 in Hamburg, in July, where he reached his second quarterfinal at the ATP 500 level. Thiago played the qualifier where he won the first game and lost in the second but the Luck allowed him to compete in the main draw as a lucky loser. After beating the No. 39 in the world, Frenchman Gilles Simon, 7–6(2) and 6–2 in the first round, in the round of 16, he played a battle against the world No. 33, the Spaniard Fernando Verdasco, winning by 3–6, 6–2 and 7–5. Qualifying for a spot in the semifinals, he was eliminated in three sets by Slovak Jozef Kovalík. In September, he reached his second Challenger semifinal of the year again in Italy in the city of Biella. The following week, Thiago reached his third Challenger semifinal in Campinas. In October, he reached his fourth Challenger semifinal of the year in the city of Lima, Peru.


2019: Three Challenger titles

In 2019, Thiago Monteiro started the year as No. 127 in the world, and ended it as No. 89. He won 3 Challengers titles in Punta del Este, Braunschweig, and Lima, in addition to making the semifinals in Santo Domingo and Buenos Aires. However, he did not achieve significant results on the ATP level. His biggest win was at the ATP 250 in Munich where he defeated world No. 48 Jan-Lennard Struff.


2020: French Open third round

In 2020, Thiago Monteiro started the year as No. 87 in the world, and ended it as No. 84. This year, he became two-time champion of the Punta del Este Challenger, beating world No. 77 Marco Cecchinato in the final. He also reached the quarter-finals at the ATP 250 in Buenos Aires, defeating world No. 31, Borna Coric, in the round of 16. He reached another quarterfinal at the ATP 250 in Santiago. In September, he was a finalist in the Forli Challenger. Monteiro reached the first Grand Slam third round in his career at the
2020 French Open The 2020 French Open was a Grand Slam (tennis), major tennis tournament played on outdoor clay courts. It was held at the Stade Roland Garros in Paris, France. Originally scheduled for 24 May to 7 June, owing to the COVID-19 pandemic, it was firs ...
defeating 31st seed
Nikoloz Basilashvili Nikoloz Basilashvili ( ka, ნიკოლოზ ბასილაშვილი, tr, ; born 23 February 1992) is a Georgian professional tennis player. He reached a career-high ATP singles ranking of world No. 16 on 27 May 2019 making him the ...
, and
Marcos Giron Marcos Andres Giron ( ; born July 24, 1993; ) is an American professional tennis player. He has a career-high singles ranking of world No. 37 achieved on August 5, 2024 and a doubles ranking of No. 194 achieved on August 1, 2022. Giron won the s ...
before he lost to
Márton Fucsovics Márton Fucsovics (, ; born 8 February 1992) is a Hungarian professional tennis player. He achieved a career-high ATP singles ranking of No. 31 on 4 March 2019. He is currently the No. 2 Hungarian player. Early life Fucsovics started playing t ...
.


2021: Australian Open first win, Olympics debut

At the
2021 Australian Open The 2021 Australian Open was a Grand Slam tennis tournament that took place at Melbourne Park, on 8–21 February 2021. It was the 109th edition of the Australian Open, the 53rd in the Open Era, and the first Major tournament of the year. It w ...
, he reached the second round for the first time at this Major, where he lost to world No. 8
Andrey Rublev Andrey Andreyevich Rublev (; born 20 October 1997) is a Russian professional tennis player. He has been ranked as high as world No. 5 in men's singles by the Association of Tennis Professionals (ATP), which he first achieved in September 2021 ...
. In 2021, Thiago Monteiro started the year as No. 84 in the world, and ended it as No. 89. Monteiro reached the semifinals of the ATP 250 in Melbourne, the quarterfinals of the ATP 250 in Cordoba, won the Challenger in Braga and was runner-up in the Challengers in Buenos Aires and Campinas. In July 2021, Monteiro qualified to represent Brazil at the
2020 Summer Olympics The officially the and officially branded as were an international multi-sport event that was held from 23 July to 8 August 2021 in Tokyo, Japan, with some of the preliminary sporting events beginning on 21 July 2021. Tokyo ...
.


2022: Top 65 debut

Monteiro started 2022 as no.89 in the world. He reached the quarterfinals of the ATP 250 in Adelaide, after winning 2 qualifying games and defeating Gael Monfils in the 2nd round of the main draw. At the ATP 500 in Rio de Janeiro, he beat Sebastian Baez but lost to top 10
Matteo Berrettini Matteo Berrettini (; born 12 April 1996) is an Italian professional tennis player. He has been ATP rankings, ranked as high as world No. 6 in singles by the Association of Tennis Professionals (ATP), which he achieved in January 2022, and world N ...
in the 2nd round. He made the quarterfinals again in other ATP 250s, in Santiago in February, and in Belgrade in April. In July 2022, Monteiro won his seventh Challenger in
Salzburg Salzburg is the List of cities and towns in Austria, fourth-largest city in Austria. In 2020 its population was 156,852. The city lies on the Salzach, Salzach River, near the border with Germany and at the foot of the Austrian Alps, Alps moun ...
, beating
Norbert Gombos Norbert Gombos (, ; born 13 August 1990, occasionally spelled Norbert Gomboš) is a Slovak professional tennis player competing primarily on the ATP Challenger Tour. He achieved a career-high ATP singles ranking of World No. 80 on 2 October 20 ...
in the final, reaching a career-high of world No. 73 on 11 July 2022 in the ATP rankings. He won his first match at the 2022 US Open defeating Alex Molcan, reaching the second round for the first time at this Major. He reached a new career-high ranking of world No. 61 on 17 October 2022 following his title at the 2022 AON Open Challenger in Genoa, Italy.


2023: First Masters wins, out of top 150

At his home tournament, the 2023 Rio Open he defeated former No. 3
Dominic Thiem Dominic Thiem (; born 3 September 1993) is an Austrian former professional tennis player. He was ranked world No. 3 in singles by the Association of Tennis Professionals (ATP), which he first achieved in March 2020. Thiem won 17 ATP Tour-level s ...
in three sets in the first round for his first win of the season. He lost to second seed and eventual winner
Cameron Norrie Cameron Norrie (; born 23 August 1995) is a British professional tennis player. He has reached career-high ATP Rankings, rankings of world No. 8 in singles (on 12 September 2022) and No. 117 in doubles (on 13 June 2022). Norrie has won five ATP ...
. The following week at the 2023 Chile Open he reached the quarterfinals defeating fifth seed
Albert Ramos Viñolas Albert Ramos Viñolas (; born 17 January 1988) is a Spanish professional tennis player. He has a career-high ATP singles ranking of world No. 17, achieved in May 2017 after reaching the final of the 2017 Monte Carlo Masters. Career Juniors R ...
and
Marco Cecchinato Marco Cecchinato (; born 30 September 1992) is an Italian professional tennis player. He has a career-high ATP singles ranking of World No. 16 reached on 25 February 2019. On 29 April 2018, he won his first ATP World Tour title at the 2018 Hunga ...
. At the 2023 Miami Open he recorded his first Masters win defeating
Jason Kubler Jason Murray Kubler ( ; born 19 May 1993) is an Australian professional tennis player. He has a career-high ATP Tour, ATP singles ranking of No. 63 achieved on 24 April 2023 and a doubles ranking of No. 27 achieved on 22 May 2023. Kubler's care ...
and almost defeated world no.9 Felix Auger-Aliassime in the second round. He followed it with a second Masters win at the 2023 Mutua Madrid Open over qualifier
Borna Gojo Borna Gojo (; born 27 February 1998) is a Croatian professional tennis player. He has a career-high Association of Tennis Professionals, ATP singles ranking of world No. 72, achieved on 20 November 2023, and a doubles ranking of world No. 394 ach ...
, and in the second round, he played evenly with No. 12
Karen Khachanov Karen Abgarovich Khachanov (, ; born 21 May 1996) is a Russian professional tennis player. He has been ranked as high as world No. 8 in men's singles by the Association of Tennis Professionals (ATP), achieved in July 2019. Khachanov has won seve ...
but was also eliminated. At the Masters 1000 in Rome in May, Monteiro was defeated by the top 20 player Borna Coric in the second round, in a close match. As a result a few months later, Monteiro ended up dropping out of the world's top 150. In September, Monteiro began his recovery, where he reached the semifinals of the Challenger 125 in Genoa, Italy, and the following week, participating in the Davis Cup, he obtained one of the biggest victories of his career, defeating world No.4
Holger Rune Holger Vitus Nødskov Rune (; born 29 April 2003) is a Danish professional tennis player. He has been ATP rankings, ranked as high as world No. 4 in men's singles by the Association of Tennis Professionals (ATP), making him the highest-ranked Da ...
in Denmark, on hardcourts, helping Brazil win the match 3-0. With the momentum obtained by the result of the Davis Cup, Monteiro soon won the Campinas Challenger. Monteiro also reached the semifinals of the Santa Fe Challenger, and was runner-up in the Montevideo Challenger, at the end of 2023. In October, Monteiro also won a bronze medal at the
2023 Pan American Games The 2023 Pan American Games (), officially the XIX Pan American Games () and commonly known as Santiago 2023, were an international multi-sport event governed by the Panam Sports Organization, held in Santiago, Chile from 20 October to 5 Novem ...
.


2024: Win over World No. 2, third ATP 500 quarterfinal, first Masters fourth round

At the 2024 Rio Open where he entered as a wildcard, he recorded a victory over top seed and World No. 2
Carlos Alcaraz Carlos Alcaraz Garfia (; born 5 May 2003) is a Spanish professional tennis player. He has been ranked as the List of ATP number 1 ranked singles tennis players, world No. 1 in men's singles by the Association of Tennis Professionals (ATP), inc ...
after his retirement due to an ankle injury. He increased officially his ATP Head2Head to 2–0 over Alcaraz, having defeated the former World No. 1 in their only previous meeting at the Melbourne-1 ATP 250 in 2021. He reached a second quarterfinal at this tournament defeating compatriot
Felipe Meligeni Alves Felipe Meligeni Rodrigues Alves (born 19 February 1998) is a Brazilian professional tennis player. He has a career-high ATP singles ranking of world No. 117 achieved on 21 April 2025 and a doubles ranking of No. 75 achieved on 20 June 2022. He i ...
. Ranked No. 118, he reached the third round at the 2024 Mutua Madrid Open after qualifying, with wins over
Dušan Lajović Dušan Lajović ( sr-Cyrl, Душан Лајовић; born 30 June 1990) is a Serbian professional tennis player. On 29 April 2019, he reached his career-high singles ranking of world No. 23. On 21 September 2020, he peaked at No. 82 in the doubl ...
and sixth seed
Stefanos Tsitsipas Stefanos Tsitsipas (, ; born 12 August 1998) is a Greek professional tennis player. He has been ATP rankings, ranked as high as world No. 3 in men's singles by the Association of Tennis Professionals (ATP), first achieved in August 2021 – mak ...
, having never advanced beyond the second round of an ATP Masters 1000 event. At the Masters 1000 in
Rome Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
, Monteiro, coming from qualifying, won four consecutive matches without losing a set, defeating Gael Monfils and 32nd seed Jordan Thompson, to reach a second consecutive third round of a Masters 1000, and only the second in his career. Monteiro had a long battle against the world No. 58
Miomir Kecmanović Miomir Kecmanović ( sr-Cyrl, Миомир Кецмановић, ; born 31 August 1999) is a Serbian professional tennis player. Kecmanović reached his best singles ranking of world No. 27 on 16 January 2023 and he peaked at world No. 127 on 24 ...
, winning the tiebreak of the last set and reaching the fourth round of a Masters for the first time in his career. He was the first Brazilian to reach the fourth round at this event since
Thomaz Bellucci Thomaz Cocchiarali Bellucci (born 30 December 1987, in Tietê, São Paulo, Tietê) is a Brazilian former professional tennis player. He achieved a career-high singles ranking of World No. 21 in July 2010. Bellucci used a string of ATP Challeng ...
in 2016. Ranked No. 84, he qualified for the main draw of the 2024 French Open with a win over Daniel Rincón.


Playing style

Monteiro's game is based primarily on a baseline game, with
topspin In ball sports, topspin or overspin is a property of a ball that rotates forwards as it is moving. Topspin on a ball propelled through the air imparts a downward force that causes the ball to drop, due to its interaction with the air (Magnus ef ...
groundstrokes to counterpunch the opponents' attacks. Thiago constantly uses his lefty forehand to move his opponents around the court, winning most points with it. Being a left-hander that is more acquainted with
clay court A clay court is one of the types of tennis court on which the sport of tennis is played. Clay courts are built on a foundation of crushed stone, brick, shale, and other construction aggregate, aggregate, with a thin layer of fine clay particles ...
s, his style is somewhat similar to one of his idols,
Rafael Nadal Rafael Nadal Parera (born 3 June 1986) is a Spanish former professional tennis player. He was ranked as the List of ATP number 1 ranked singles tennis players, world No. 1 in men's singles by the Association of Tennis Professionals (ATP) for ...
. Even though he trained in clay courts during most of his tennis life, Monteiro's adaptation to
hard court A hardcourt (or hard court) is a type of surface or floor on which a sport is played, most usually in reference to tennis courts. It is typically made of rigid materials such as Asphalt concrete, asphalt or concrete, and covered with acrylic resin ...
s especially was noted by tennis critics in 2016. On these surfaces, Thiago varies his game more, using volleys and slices more than on clay.


Personal life

Monteiro grew up on a foster family. He has three sisters - Letícia, Jéssica, and Flávia - and an older brother, Fáber Monteiro, who works as a real estate broker. Besides Portuguese, he is also fluent in English, Spanish and Italian. Monteiro uses his spare time to enjoy movies and spend it with friends and family. He attended college classes online. He dated fellow Brazilian tennis player
Beatriz Haddad Maia Beatriz "Bia" Haddad Maia (; born 30 May 1996) is a Brazilian professional tennis player. She reached a career-high of world No. 10 in singles and in doubles, becoming the first Brazilian woman to enter the top 10 in singles in the history of t ...
in the past.


Equipment and endorsements

As of October 2014, Monteiro has been training at Tennis Route Academy, at
Rio de Janeiro Rio de Janeiro, or simply Rio, is the capital of the Rio de Janeiro (state), state of Rio de Janeiro. It is the List of cities in Brazil by population, second-most-populous city in Brazil (after São Paulo) and the Largest cities in the America ...
, where other prominent Brazilian players train, including
Marcelo Demoliner Marcelo Fedrizzi Demoliner (born 18 January 1989) is a Brazilian professional tennis player, who specializes in doubles. He reached a career-high doubles ranking of world No. 34 in November 2017. Demoliner has won five doubles titles. He won hi ...
and
Beatriz Haddad Maia Beatriz "Bia" Haddad Maia (; born 30 May 1996) is a Brazilian professional tennis player. She reached a career-high of world No. 10 in singles and in doubles, becoming the first Brazilian woman to enter the top 10 in singles in the history of t ...
.
Lacoste Lacoste S.A. (; ) is a French designer sports fashion company, founded in 1933 by tennis player René Lacoste, and entrepreneur André Gillier. It sells clothing, footwear, sportswear, eyewear, leather goods, perfume, towels and watches. The ...
was Thiago's clothing brand until January 2017, when he signed with the Spanish brand
Joma Joma Sport, S.A. is a Spanish sports clothing and shoes brand. History Joma was founded in 1965 by Fructuoso López to produce shoes for general use. The brand name comes from the given name of Fructuoso's first born son (José Manuel). In 196 ...
. He uses Babolat racquets. Other sponsors include Elemidia (since February 2017), Correios, and Fundação Beto Studart (since 2009).


Performance timelines


Singles

''Current through the 2025 French Open.''


National and international representation


Davis Cup

As a Junior, Monteiro participated in the Junior Davis Cup, playing in 2010. The Brazilian team finished in the 7th position that year. As a senior, he was first nominated to play for
Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...
in Davis Cup after reaching the No. 2 spot in singles for his country. He played against
Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
in
2016 2016 was designated as: * International Year of Pulses by the sixty-eighth session of the United Nations General Assembly. * International Year of Global Understanding (IYGU) by the International Council for Science (ICSU), the Internationa ...
, with Brazil losing the tie 0–4, and returning to the Zonal Group. Thiago was later nominated to play against
Ecuador Ecuador, officially the Republic of Ecuador, is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean on the west. It also includes the Galápagos Province which contain ...
in
2017 2017 was designated as the International Year of Sustainable Tourism for Development by the United Nations General Assembly. Events January * January 1 – Istanbul nightclub shooting: A gunman dressed as Santa Claus opens fire at the ...
. He won his two matches, including the final match of the tie (a dead rubber). Monteiro was the no.1 singles player for Brazil against a
Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
ese team who missed most of its top players in a tie to decide a World Group spot for 2018. However, Brazil failed to capitalize on the opportunity, with both matches lost boy him. Being the team singles No.1 for a second time, this turn against the
Dominican Republic The Dominican Republic is a country located on the island of Hispaniola in the Greater Antilles of the Caribbean Sea in the Atlantic Ocean, North Atlantic Ocean. It shares a Maritime boundary, maritime border with Puerto Rico to the east and ...
, Monteiro failed to confirm his ranking superiority, losing his second match against No.184
José Hernández-Fernández José Hernández-Fernández (; born March 13, 1990) is a tennis coach and a former professional player from the Dominican Republic. He reached his highest singles ranking on the ATP Tour of World No. 179 in August 2015 and his highest dou ...
after winning against
Roberto Cid Subervi Roberto Cid Subervi (; born 30 August 1993) is a Dominican–American tennis player. Cid Subervi has a career high ATP singles ranking of 211 achieved on 14 September 2020. He also has a career high ATP doubles ranking of 262, achieved on 19 ...
. Brazil went on to win the tie 3–2, anyway, in the 1st round of the 2018 Davis Cup Americas Zone Group I. Currently, Monteiro holds a 7–6 record in Davis Cup matches. He has played only singles matches thus far.


ATP Challenger Tour finals


Singles: 16 (9 titles, 7 runner-ups)


Doubles: 2 (2 runner-ups)


ITF Futures finals


Singles: 8 (5 titles, 3 runner-ups)


Doubles: 4 (2 titles, 2 runner-ups)


Wins over top 10 players

*Monteiro's match record against players who were, at the time the match was played, ranked in the top 10.


Notes


References


External links

* * * * * * {{DEFAULTSORT:Monteiro, Thiago 1994 births Living people Brazilian male tennis players Olympic tennis players for Brazil Tennis players at the 2020 Summer Olympics Tennis players at the 2024 Summer Olympics Pan American Games bronze medalists for Brazil Pan American Games bronze medalists in tennis Tennis players at the 2023 Pan American Games Medalists at the 2023 Pan American Games Competitors at the 2010 South American Games Brazilian people of Portuguese descent Sportspeople of Portuguese descent Sportspeople from Fortaleza 21st-century Brazilian sportsmen