Monteiro at the2022 BNP Paribas Primrose Bordeaux | |||||||||||||||
| Full name | Thiago Moura Monteiro | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Country (sports) | |||||||||||||||
| Residence | Buenos Aires, Argentina | ||||||||||||||
| Born | (1994-05-31)31 May 1994 (age 31) | ||||||||||||||
| Height | 1.83 m (6 ft 0 in) | ||||||||||||||
| Turned pro | 2011 | ||||||||||||||
| Plays | Left-handed (two-handed-backhand) | ||||||||||||||
| Coach | Ruben Ramirez-Hidalgo, Pablo Fuentes[1] | ||||||||||||||
| Prize money | US$ 4,320,125[2] | ||||||||||||||
| Singles | |||||||||||||||
| Career record | 94–137 | ||||||||||||||
| Career titles | 0 | ||||||||||||||
| Highest ranking | No. 61 (17 October 2022) | ||||||||||||||
| Current ranking | No. 186 (17 November 2025) | ||||||||||||||
| Grand Slam singles results | |||||||||||||||
| Australian Open | 2R (2021) | ||||||||||||||
| French Open | 3R (2020) | ||||||||||||||
| Wimbledon | 2R (2017) | ||||||||||||||
| US Open | 2R (2022) | ||||||||||||||
| Other tournaments | |||||||||||||||
| Olympic Games | 1R (2021,2024) | ||||||||||||||
| Doubles | |||||||||||||||
| Career record | 12–31 | ||||||||||||||
| Career titles | 0 | ||||||||||||||
| Highest ranking | No. 144 (31 January 2022) | ||||||||||||||
| Grand Slam doubles results | |||||||||||||||
| Australian Open | 3R (2021) | ||||||||||||||
| French Open | 1R (2023) | ||||||||||||||
| Wimbledon | 2R (2021) | ||||||||||||||
| US Open | 2R (2021,2024) | ||||||||||||||
| Other doubles tournaments | |||||||||||||||
| Olympic Games | 2R (2024) | ||||||||||||||
| Team competitions | |||||||||||||||
| Davis Cup | PO (2016,2017) | ||||||||||||||
Medal record
| |||||||||||||||
| Last updated on: 17 November 2025. | |||||||||||||||
Thiago Moura Monteiro (Brazilian Portuguese:[tʃiˈaɡumõˈtejɾu]; born 31 May 1994) is a Brazilian professionaltennis player. He has a career-highATP 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 singles player from Brazil.[3]
On theITF 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 inPorto Alegre, Brazil.
Thiago Moura Monteiro was born on 31 May 1994 inFortaleza, Brazil. His first introduction to tennis happened when he watched aGustavo Kuerten match on TV with his brother.[4] 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.[5] Thiago would leave his hometown, Fortaleza, in late 2008 to enter the Larri Passos Academy inBalneário Camboriú to improve his game. He later said on interviews that he would probably be a football player if he had not made that change.[6]
Thiago Monteiro had a successful junior career, winning many tournaments. Monteiro peaked in theITF 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.[7]
In 2004, being ten years old, Thiago won the Paraíba Tour Tournament.[5] In 2005, Monteiro won the Fortaleza Cup by beating Evandro Alencar in straight sets in the final.[8] In 2006, he captured the first of three titles at the Banana Bowl, in the category u12.[9] 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).[9] Monteiro also conquered his second Banana Bowl title, category u14.[10] 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 inFortaleza, toBalneário Camboriú, inSanta 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 theATP rankings by playing two Futures events in the doubles category.[11]
Starting in 2010, Thiago was number one in bothCBT andCOSAT 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, inFortaleza. In 2011, Thiago started the year winning the Grade A Copa Gerdau inPorto Alegre, one of the most important tournaments on theITF 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.[12]
Thiago didn't achieve much success in singles Grand Slams as a junior: his best results were reaching the third round at theWimbledon Championships in 2011 and 2012French Open. He had a better run at doubles: reaching the quarterfinals of theAustralian Open and the semifinals at theFrench Open, both in 2012. Monteiro's last match as a junior was at the2012 US Open.
In late 2011, Thiago won his first professional title, the Bahia Open, a Future tournament with US$10,000 in money prize.[13] He battled past his training partner Alexandre Schnitman, winning in close, straight sets.[14] This win led Thiago to receive a wildcard entry on the main draw ofAberto de São Paulo, but he was eliminated on the first round by compatriotAndré Ghem.
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 at2012 Aberto de Florianópolis,[9] in late February, but he was eliminated in the first round byThiago Alves. In late May, Thiago won his second Futures title, this time on clay, inBauru.[15] The final was a thrilling three-hour victory overLeonardo Kirche, with Monteiro winning despite losing the first set.[16] The Brazilian was runner-up on two other Futures played in Brazil: atSão José do Rio Preto in August[17] and atPorto Alegre in October.[18] Thiago ended the year with a career ranking of 439, after starting the year at the position 701.[11]
Entering 2013 as the first year that Thiago would play a full season as a senior professional, he was invited a second time to enterAberto de São Paulo main draw, but couldn't make it past the first round again, losing to countrymanGuilherme Clezar in straight sets. Monteiro later played in consecutive Futures events in the United States without much success.[19] He tried to break through the qualifiers ofBrasil Open a month later, but lost toThiago 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.[20] His first title there was against CzechJan Minar, winning in straight sets.[21] A week later, he defeated the DominicanJosé Hernández also in straight sets. He also won his first Futures title in doubles, partnering Maximiliano Estévez, fromArgentina, defeating in the finals the partnership of Kirill Dmitriev andYaraslav Shyla in the super tiebreak.[22]
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 toBjorn Fratangelo in three sets.[23] Thiago broke through multiple Challenger qualifiers later in the year, includingSport 1 Open in Netherlands, thePoznań Open in Poland, theOberstaufen Cup in Germany, and theUruguay Open. His best results were in the quarterfinals in Germany and Netherlands, a performance he also achieved inIS Open andAberto Rio Preto, but he didn't need to play the qualifiers in the latter.[19] In doubles, Thiago reached the finals ofTetra Pak Tennis Cup partneringThiago Alves, but they lost in straight sets against theArgentinian team ofGuido Andreozzi andMáximo González. He also reached the semifinals ofIS Open andAberto Rio Preto, partneringThiago Alves in the first andRogério Dutra Silva in the latter,[22] achieving his career high in the doubles ranking: 449th. He ended in the 276th position in the singles ranking.
Thiago's year started only in late February due to an injury on his left knee.[24] He attempted to qualify toBrasil Open, but lost in the second round toDušan Lajović in straight sets. In March, Thiago qualified toVisit Panamá Cup, defeatingAlexander Zverev on his way, but Monteiro lost in the first round. Thiago's 5th Futures title came in late June, in the Netherlands, where he defeatedBoy Westerhof in three sets.[25] Thiago was not able to repeat his runs in theChallenger Tour as he did in 2013. His rank dropped down to 563rd by the end of the year.[11] In doubles, Thiago reached the finals of two Futures (one in Netherlands,[26] one inDominican Republic[27]), but wasn't able to win his 2nd title in either.
Trying to recover his positions in theATP rankings, Thiago tried to break through multiple qualifiers ofATP World Tour tournaments. He attempted to do so in clay events, reaching the final qualifying round in theArgentina Open and theU.S. Men's Clay Court Championships, losing respectively toFacundo Bagnis[28] andRogério Dutra Silva.[29] While his run on qualifiers wasn't much successful on the ATP World Tour, Thiago had better success at theATP Challenger Tour. Over the year, Thiago entered 11 qualifier draws, breaking through 5 of them.[30] Monteiro's also played his last Futures event to date, playing two weeks in Georgia[30] in both singles and doubles. Partnering with the ItalianMarco Bortolotti, the left-hander won his 2nd Futures title by defeating the Russian partnership of Victor Badula and Ivan Kalinin in straight sets.[31]
Almost a month later, playing in the qualifiers ofPoprad-Tatry ATP Challenger Tour, Thiago badly injured his left knee while holding a match point againstCzech Robin Stanek[32] and was forced to retire. He stayed away from the courts for three months, returning in theCampeonato Internacional de Tênis de Campinas 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 theChallenger Ciudad de Guayaquil, passing through the qualifiers and reaching the quarter-finals, where he had to retire against the eventual runner-up,Guido Pella. Thiago ended in the 470th position in the singles ranking.[11]

Ranked at the beginning of the year at No. 463, Thiago started strong, qualifying toTorneo de Mendoza main draw and reaching the quarterfinals, where Monteiro lost to eventual championGerald Melzer in straight sets.[33] The left-hander received a wildcard invite toVivo 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 toFacundo Bagnis.[34]
This performance led him to receive a wildcard intoRio Open main draw where he would faceJo-Wilfried Tsonga, the third seed and world No. 9 at the time. Thiago (ranked No. 338) stunned Tsonga in three sets,[35] to set a meeting withPablo Cuevas. Monteiro lost in straight sets, and his opponent won the tournament, defeatingGuido Pella in the final.[36] The surprise performance led Monteiro to receive a second wildcard, this time to play intoBrasil Open main draw. Thiago started strong, defeating two Spaniards,Nicolás Almagro in the first round[37] andDaniel Muñoz de la Nava[38] 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.[39] Cuevas also won this tournament, beatingPablo Carreño Busta in the final.[40]
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 theChallenger ATP Cachantún Cup, where he lost to countrymanRogério Dutra Silva,[41] in March. The other semifinal was his second Challenger event in Brazil in 2016, theSão Paulo Challenger de Tênis, where seeded third, he lost toGonzalo Lama in three sets.[42][43]
Returning to Europe, Thiago entered theOpen du Pays d'Aix draw unseeded, and with a strong performance, he conquered the title by beatingCarlos Berlocq in the final.[44][45][46] Thiago playedtwoother tournaments without the same success, before entering theFrench Open qualifying draw as the 30th seed. Monteiro was beaten in straight sets byRuben Bemelmans.[47] A week later, Monteiro had a rematch with Bemelmans in the first round of theFranken Challenge, defeating him in straight sets.[48] Thiago later lost in the quarterfinals toTobias Kamke. Playing in another clay tournament in France, Monteiro reached a second Challenger final, this time at theOpen Sopra Steria de Lyon. Seeded 5th, he faced another Belgian this time,Steve Darcis. The left-hander took the first set, but the Belgian grew in the match, turning it into three sets.[49]
Before attempting to qualify for his secondGrand Slam, Monteiro played at theInternationaux de Tennis de Blois but withdrew from the second round match againstMiljan Zekić, citing a back injury.[50] At theWimbledon Championships qualifying, Thiago was eliminated again in the first round, this time toJulian Reister.[51] To improve his position in the ATP rankings, Thiago attempted and qualified for theGerman Open main draw. The Brazilian won three matches against threeGermans players (two in the qualifiers, andMischa Zverev in the main draw),[52] to set a third match againstPablo Cuevas. Cuevas delivered Monteiro's third loss in the ATP World Tour,[53] but this time he did not win the tournament, being runner-up instead. Thiago qualified for a consecutive World Tour appearance this time atSwiss Open Gstaad. Monteiro was defeated byRobin Haase in the third round. The Brazilian defeatedAntoine Bellier in the first round and the second seed, and top 30Gilles Simon in the second round.[54]
Attempting to break into the top 100, Monteiro entered as the top seed in theBB&T Atlanta Open qualifiers. He breezed past AmericanTrent Bryde, winning in straight sets and recording abagel,[55] but lost toChristopher Eubanks in straight sets, at the final round. However,Rajeev Ram withdrew from the tournament, and Monteiro was awarded alucky loser entry into the main draw.[56] Unfortunately for Thiago, he didn't have the same luck during the first round match, againstTim Smyczek. 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.[57] Thiago also did his debut in doubles in Atlanta, playing withYoshihito Nishioka, but they lost at the super tiebreak against American partnership of Zack Kennedy and Christopher Eubanks.[58]
A week later, Thiago entered directly into the main draw of an ATP event for the first time, theLos Cabos Open; but lost in the first round toDušan Lajović in straight sets.[59]
Thiago finally broke the Top 100 milestone after winning in the first round of theWestern & Southern Open qualifiers against veteranIvan Dodig in straight sets.[60] However, Thiago failed to qualify as he lost in the final round toJiří Veselý in three sets. The win also won Monteiro the second spot in the Brazilian Top 10 singles for the first time in his career.[61] Later at the end of August, Thiago tried to qualify at theUS Open, but for the third time in the qualifiers, he lost at the first round.[62] After the US Open, Thiago was invited for the first time to play in theDavis Cup. He entered the team to play againstBelgium, opening the rubbers againstDavid Goffin. Monteiro lost in straight sets, and Brazil finished the series 0–4. Following his unsuccessful run at the Davis Cup, Thiago entered theCampeonato Internacional de Tenis de Santos as the 2nd seed.[63][64] He went on to his third Challenger final, losing in straight sets toRenzo Olivo. Thiago ended his year with two other quarterfinals (Campinas andBuenos Aires) and a semifinal (Santiago) appearance at Challenger events.[65][66]

Thiago started his year atChennai Open, losing in the first round toDaniil Medvedev. A week later, he entered theSydney International qualifiers drew and passed through it, but he came short again in the first round, losing toDaniel Evans. Ranked No. 83, Thiago's ranking was enough for him to enter theAustralian Open main draw directly. He set a rematch againstJo-Wilfried Tsonga but could not reproduce the tennis from their first match, losing in four sets.[67][68][69]
Entering theEcuador Open, Monteiro's performance was disappointing; he lost another match in the first round, this time toGiovanni Lapentti. He also entered the doubles draw there, playing withThomaz Bellucci, but they came short in the first round. Playing on Argentinian soil, Monteiro passed the first round, defeating ex-top 10Tommy Robredo en route to the quarterfinals of theArgentina Open, before losing to local playerCarlos Berlocq in three sets.[70][71] Monteiro made a consecutive quarterfinal appearance, this time at the ATP 500Rio Open, beatingGastão Elias and compatriotThomaz Bellucci before losing toCasper Ruud. Entering another his home tournament, theBrasil Open, Thiago lost for the second time in a row to Carlos Berlocq.[72][73]
A couple of weeks later, in hisMasters 1000 main draw debut atIndian Wells Masters, Monteiro lost in a close match toMartin Kližan, losing a set point in the first set tiebreak and six break point opportunities overall.[74] In another close match, Monteiro was also eliminated in the first round of theMiami Open, this time byViktor Troicki in three sets.[75]
Following the first two Masters of the season, Monteiro played two singles rubbers for his country at theDavis Cup, winning both to help Brazil win 5–0 againstEcuador, classifying his country to the World Group play-offs. Starting the spring clay court season, he entered theU.S. Men's Clay Court Championships main draw.[76] At the maroon clay courts, Thiago defeated seventh seedDonald Young in straight sets but lost in three toErnesto Escobedo.[77] At theBarcelona Open, Thiago qualified for the main draw, but lost to Daniel Evans in the first round. A week after, in the first round ofBMW Open, he lost toMarius Copil.[78][79]
At the2017 French Open he recorded his first win at a Major defeating wildcardAlexandre Müller. He followed this by another win at the2017 Wimbledon Championships over qualifierAndrew Whittington (tennis).
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.[80]

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.[81]
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 the2020 French Open defeating 31st seedNikoloz Basilashvili,[82] andMarcos Giron before he lost toMárton Fucsovics.[83]
At the2021 Australian Open, he reached the second round for the first time at this Major, where he lost to world No. 8Andrey Rublev. 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.[84]
In July 2021, Monteiro qualified to represent Brazil at the2020 Summer Olympics.
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 defeatingGael 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 10Matteo Berrettini in the 2nd round. He made the quarterfinals again in other ATP 250s, in Santiago in February, and in Belgrade in April.[85]
In July 2022, Monteiro won his seventh Challenger inSalzburg, beatingNorbert Gombos in the final, reaching a career-high of world No. 73 on 11 July 2022 in the ATP rankings.[86]
He won his first match at the2022 US Open defeatingAlex 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 the2022 AON Open Challenger in Genoa, Italy.

At his home tournament, the2023 Rio Open he defeated former No. 3Dominic Thiem in three sets in the first round for his first win of the season.[87] He lost to second seed and eventual winnerCameron Norrie. The following week at the2023 Chile Open he reached the quarterfinals defeating fifth seedAlbert Ramos Viñolas andMarco Cecchinato.
At the2023 Miami Open he recorded his first Masters win defeatingJason Kubler and almost defeated world no.9Felix Auger-Aliassime in the second round. He followed it with a second Masters win at the2023 Mutua Madrid Open over qualifierBorna Gojo, and in the second round, he played evenly with No. 12Karen Khachanov but was also eliminated.
At the Masters 1000 in Rome in May, Monteiro was defeated by the top 20 playerBorna 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.4Holger Rune in Denmark, on hardcourts, helping Brazil win the match 3-0.[88] 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.[89][90]
In October, Monteiro also won a bronze medal at the2023 Pan American Games.[91]
At the2024 Rio Open where he entered as a wildcard, he recorded a victory over top seed and World No. 2Carlos Alcaraz 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.[92] He reached a second quarterfinal at this tournament defeating compatriotFelipe Meligeni Alves.
Ranked No. 118, he reached the third round at the2024 Mutua Madrid Open after qualifying, with wins overDušan Lajović and sixth seedStefanos Tsitsipas, having never advanced beyond the second round of an ATP Masters 1000 event.[93][94]
At the Masters 1000 inRome, Monteiro, coming from qualifying, won four consecutive matches without losing a set, defeatingGael Monfils and 32nd seedJordan Thompson, to reach a second consecutive third round of a Masters 1000, and only the second in his career.[95][96] Monteiro had a long battle against the world No. 58Miomir Kecmanović, 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 sinceThomaz Bellucci in 2016.[97][98]
Ranked No. 84, he qualified for the main draw of the2024 French Open with a win overDaniel Rincón.[99]
Monteiro's game is based primarily on abaseline game, withtopspin 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 withclay courts, his style is somewhat similar to one of his idols,Rafael Nadal.[100]
Even though he trained in clay courts during most of his tennis life, Monteiro's adaptation tohard courts especially was noted by tennis critics in 2016. On these surfaces, Thiago varies his game more, usingvolleys andslices more than on clay.[101]
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.[6]
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 playerBeatriz Haddad Maia in the past.[102]
As of October 2014, Monteiro has been training at Tennis Route Academy, atRio de Janeiro, where other prominent Brazilian players train, includingMarcelo Demoliner andBeatriz Haddad Maia.[103]Lacoste was Thiago's clothing brand until January 2017, when he signed with the Spanish brandJoma.[104] He usesBabolat racquets. Other sponsors include Elemidia (since February 2017), Correios, and Fundação Beto Studart (since 2009).[105][9]
| W | F | SF | QF | #R | RR | Q# | P# | DNQ | A | Z# | PO | G | S | B | NMS | NTI | P | NH |
Current through the2025 French Open.
| Tournament | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | SR | W–L | Win (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grand Slam tournaments | ||||||||||||||
| Australian Open | A | A | 1R | Q1 | Q3 | 1R | 2R | 1R | 1R | A | 1R | 0 / 6 | 1–6 | 17% |
| French Open | A | Q1 | 2R | Q1 | 1R | 3R | 2R | Q1 | 1R | 1R | 1R | 0 / 7 | 4–7 | 36% |
| Wimbledon | A | Q1 | 2R | Q1 | 1R | NH | 1R | 1R | 1R | 1R | Q1 | 0 / 6 | 1–6 | 14% |
| US Open | A | Q1 | 1R | Q2 | 1R | 1R | 1R | 2R | Q1 | 1R | Q1 | 0 / 6 | 1–6 | 14% |
| Win–loss | 0–0 | 0–0 | 2–4 | 0–0 | 0–3 | 2–3 | 2–4 | 1–3 | 0–3 | 0–3 | 0–2 | 0 / 25 | 7–25 | 22% |
| ATP Masters 1000 | ||||||||||||||
| Indian Wells Open | A | A | 1R | A | A | NH | 1R | A | 1R | 0 / 3 | 0–3 | 0% | ||
| Miami Open | A | A | 1R | Q1 | 1R | NH | A | Q1 | 2R | Q1 | 0 / 3 | 1–3 | 25% | |
| Monte-Carlo Masters | A | A | A | A | A | NH | Q1 | A | A | 0 / 0 | 0–0 | 0% | ||
| Madrid Open | A | A | Q1 | A | A | NH | Q1 | A | 2R | 3R | 0 / 2 | 3–2 | 60% | |
| Italian Open | A | A | 1R | A | A | Q1 | Q2 | A | 2R | 4R | 0 / 3 | 4–3 | 57% | |
| Canadian Open | A | A | A | A | A | NH | A | A | A | 0 / 0 | 0–0 | 0% | ||
| Cincinnati Open | A | Q2 | A | A | A | Q2 | Q1 | Q2 | A | 0 / 0 | 0–0 | 0% | ||
| Shanghai Masters | A | A | Q1 | A | A | NH | A | 0 / 0 | 0–0 | 0% | ||||
| Paris Masters | A | A | A | A | A | A | A | Q2 | A | 0 / 0 | 0–0 | 0% | ||
| Win–loss | 0–0 | 0–0 | 0–3 | 0–0 | 0–1 | 0–0 | 0–1 | 0–0 | 3–4 | 5–2 | 0 / 11 | 8–11 | 42% | |
| National representation | ||||||||||||||
| Summer Olympics | NH | A | NH | 1R | NH | 0 / 1 | 0–1 | 0% | ||||||
| Davis Cup | A | PO | PO | Q | Q | QR | 0 / 0 | 8–9 | 47% | |||||
| Career statistics | ||||||||||||||
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | SR | W–L | Win (%) | |||
| Tournaments | 0 | 6 | 22 | 8 | 11 | 7 | 16 | 18 | 12 | Total: 88 | ||||
| Titles | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | Total: 0 | ||||
| Finals | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | Total: 0 | ||||
| Overall win-loss | 0–0 | 6–7 | 13–24 | 10–10 | 5–12 | 8–10 | 13–16 | 15–21 | 6–12 | 0 / 89 | 70–101 | 41% | ||
| Win (%) | 0% | 46% | 35% | 50% | 29% | 44% | 45% | 42% | 33% | Total: 41% | ||||
| Year-end ranking[a] | 463 | 82 | 124 | 120 | 89 | 84 | 88 | 73 | 122 | $3,444,257 | ||||
As a Junior, Monteiro participated in theJunior Davis Cup, playing in 2010. The Brazilian team finished in the 7th position that year.[106]
As a senior, he was first nominated to play forBrazil in Davis Cup after reaching the No. 2 spot in singles for his country.[107] He played againstBelgium in2016, with Brazil losing the tie 0–4, and returning to the Zonal Group.[108] Thiago was later nominated to play againstEcuador in2017.[109] He won his two matches, including the final match of the tie (a dead rubber).[110]Monteiro was the no.1 singles player for Brazil against aJapanese 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.[111]
Being the team singles No.1 for a second time, this turn against theDominican Republic, Monteiro failed to confirm his ranking superiority, losing his second match against No.184José Hernández-Fernández after winning againstRoberto Cid Subervi. Brazil went on to win the tie 3–2, anyway, in the 1st round of the2018 Davis Cup Americas Zone Group I.[112]
Currently, Monteiro holds a 7–6 record in Davis Cup matches. He has played only singles matches thus far.
| All Davis Cup Matches: 7–6 (Singles: 7–6) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 2016 Davis Cup World Group play-offs | ||||||||
| Round | Date | Opponent | Final match score | Location | Surface | Match | Opponent | Rubber Score |
| QR | September 16–18, 2016 | 0–4 | Ostend | Hard (i) | Singles 1 | David Goffin | 2–6, 2–6, 0–6 | |
| 2017 Davis Cup Americas Zone Group I | ||||||||
| Round | Date | Opponent | Final match score | Location | Surface | Match | Opponent | Rubber Score |
| 2R | April 7–9, 2017 | 5–0 | Ambato | Clay | Singles 2 | Roberto Quiroz | 6–7(6–8), 7–6(7–0), 6–3, 7–6(9–7) | |
| Singles 5 | Gonzalo Escobar | 6–7(5–7), 6–4, 6–3 | ||||||
| 2017 Davis Cup World Group play-offs | ||||||||
| Round | Date | Opponent | Final match score | Location | Surface | Match | Opponent | Rubber Score |
| QR | September 15–17, 2017 | 1–3 | Osaka | Hard | Singles 2 | Go Soeda | 6–3, 4–6, 3–6, 7–6(7–1), 4–6 | |
| Singles 4 | Yūichi Sugita | 3–6, 2–6, 3–6 | ||||||
| 2018 Davis Cup Americas Zone Group I | ||||||||
| Round | Date | Opponent | Final match score | Location | Surface | Match | Opponent | Rubber Score |
| 1R | February 2–3, 2018 | 3–2 | Santo Domingo | Hard | Singles 2 | Roberto Cid Subervi | 6–7(6–8), 7–5, 6–2 | |
| Singles 4 | José Hernández-Fernández | 4–6, 6–7(4–7) | ||||||
| 2R | April 6–7, 2018 | 2–3 | Barranquilla | Hard | Singles 1 | Santiago Giraldo | 6–1, 6–2 | |
| Singles 4 | Daniel Elahi Galán | 3–6, 3–6 | ||||||
| 2019 Davis Cup final qualifying round | ||||||||
| Round | Date | Opponent | Final match score | Location | Surface | Match | Opponent | Rubber Score |
| QR | February 1–2, 2019 | 1–3 | Uberlândia | Clay (i) | Singles 1 | Arthur De Greef | 6–3, 6–2 | |
| Singles 4 | Kimmer Coppejans | 3–6, 4–6 | ||||||
| 2019 Davis Cup Americas Zone Group I | ||||||||
| Round | Date | Opponent | Final match score | Location | Surface | Match | Opponent | Rubber Score |
| QR | September 13–14, 2019 | 3–1 | Criciuma | Clay | Singles 2 | Haydn Lewis | 6–2, 6–2 | |
| Singles 4 | Darian King | 6–4, 7–6(8–6) | ||||||
|
|
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
|---|---|---|---|---|---|---|---|
| Win | 1–0 | May 2016 | Pays d'Aix Open, France | Challenger | Clay | 4–6, 6–4, 6–1 | |
| Loss | 1–1 | Jun 2016 | Lyon Open, France | Challenger | Clay | 6–3, 2–6, 0–6 | |
| Loss | 1–2 | Sep 2016 | Santos International, Brazil | Challenger | Clay | 4–6, 6–7(5–7) | |
| Win | 2–2 | Jan 2019 | Punta Open, Uruguay | Challenger | Clay | 3–6, 6–2, 6–3 | |
| Win | 3–2 | Jul 2019 | Sparkassen Open, Germany | Challenger | Clay | 7–6(8–6), 6–1 | |
| Win | 4–2 | Oct 2019 | Lima Challenger, Peru | Challenger | Clay | 6–2, 6–7(7–9), 6–4 | |
| Win | 5–2 | Jan 2020 | Punta Open, Uruguay(2) | Challenger | Clay | 7–6(7–3), 6–7(6–8), 7–5 | |
| Loss | 5–3 | Sep 2020 | Forlì International, Italy | Challenger | Clay | 6–7(2–7), 6–7(5–7) | |
| Win | 6–3 | Sep 2021 | Braga Open, Portugal | Challenger | Clay | 7–5, 7–5 | |
| Loss | 6–4 | Oct 2021 | Buenos Aires Challenger, Argentina | Challenger | Clay | 4–6, 0–6 | |
| Loss | 6–5 | Nov 2021 | Campinas International, Brazil | Challenger | Clay | 1–6, 4–6 | |
| Win | 7–5 | Jul 2022 | Salzburg Open, Austria | Challenger | Clay | 6–3, 7–6(7–2) | |
| Win | 8–5 | Sep 2022 | AON Open, Italy | Challenger | Clay | 6–1, 7–6(7–2) | |
| Win | 9–5 | Oct 2023 | Campinas International, Brazil | Challenger | Clay | 3–6, 6–4, 6–4 | |
| Loss | 9–6 | Mar 2025 | Santiago Challenger, Chile | Challenger | Clay | 5–7, 3–6 | |
| Loss | 9–7 | Mar 2025 | Paraguay Open, Paraguay | Challenger | Clay | 5–7, 3–6 |
|
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Sep 2013 | Tetra Pak Tennis Cup, Brazil | Challenger | Clay | 4–6, 4–6 | ||
| Loss | 0–2 | Nov 2018 | Guayaquil Challenger, Ecuador | Challenger | Clay | 3–6, 2–6 |
|
|
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
|---|---|---|---|---|---|---|---|
| Win | 1–0 | Nov 2011 | F38 Salvador, Brazil | Futures | Hard | 7–6(7–2), 6–4 | |
| Win | 2–0 | May 2012 | F11 Bauru, Brazil | Futures | Clay | 2–6, 6–2, 7–6(8–6) | |
| Loss | 2–1 | Aug 2012 | F21 São José do Rio Preto, Brazil | Futures | Clay | 2–6, 2–6 | |
| Loss | 2–2 | Nov 2012 | F32 Porto Alegre, Brazil | Futures | Clay | 3–6, 2–6 | |
| Win | 3–2 | Apr 2013 | F14 Antalya, Turkey | Futures | Hard | 7–6(7–2), 6–4 | |
| Win | 4–2 | Apr 2013 | F15 Antalya, Turkey | Futures | Hard | 6–3, 7–6(7–5) | |
| Loss | 4–3 | Jun 2013 | F1 Amstelveen, Netherlands | Futures | Clay | 6–3, 4–6, 3–6 | |
| Win | 5–3 | Jun 2014 | F4 Middelburg, Netherlands | Futures | Clay | 6–4, 6–7(2–7), 7–5 |
|
|
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Win | 1–0 | Mar 2013 | F12 Antalya, Turkey | Futures | Hard | 5–7, 6–2, [10–6] | ||
| Loss | 1–1 | Jun 2014 | F3 Breda, Netherlands | Futures | Clay | 3–6, 5–7 | ||
| Loss | 1–2 | Dec 2014 | F2 Santiago de los Caballeros, Dominican Republic | Futures | Clay | 6–3, 4–6, [8–10] | ||
| Win | 2–2 | May 2015 | F3 Pantiani, Georgia | Futures | Clay | 7–6(9–7), 7–5 |
| Season | 2016 | ... | 2023 | 2024 | Total |
|---|---|---|---|---|---|
| Wins | 1 | 1 | 3 | 5 |
| No. | Player | Rank | Tournament | Surface | Rd | Score | Rk |
|---|---|---|---|---|---|---|---|
| 2016 | |||||||
| 1. | 9 | Rio Open, Brazil | Clay | 1R | 6–3, 3–6, 6–4 | 338 | |
| 2023 | |||||||
| 2. | 4 | Davis Cup,Hillerød, Denmark | Hard (i) | G1 | 6–7(4–7), 7–6(7–5), 6–2 | 116 | |
| 2024 | |||||||
| 3. | 2 | Rio Open, Brazil | Clay | 1R | 1–1, ret. | 117 | |
| 4. | 7 | Madrid Open, Spain | Clay | 2R | 6–4, 6–4 | 118 | |
| 5. | 9 | Swedish Open, Sweden | Clay | 2R | 6–3, 6–3 | 85 | |