| ATP Rome Qual | 05/13 16:05 | 45 | Thiago Monteiro v Pierre-Hugues Herbert | 6-2,7-6 | |
| ATP Madrid Qual | 05/06 09:00 | 45 | [100] Santiago Giraldo v Thiago Monteiro [81] | 6-4,5-7,7-6 | |
| ATP Munich | 05/02 09:00 | 25 | [81] Thiago Monteiro v Marius Copil [109] | 6-4,5-7,4-6 | |
| ATP Barcelona | 04/24 10:40 | 24 | [43] Daniel Evans v Thiago Monteiro [80] | 6-7,6-2,7-6 | |
| ATP Barcelona Qual | 04/23 13:05 | 46 | [80] Thiago Monteiro v Jordi Samper-Montana [216] | 6-1,6-7,6-1 | |
| ATP Barcelona Qual | 04/22 08:00 | 45 | [80] Thiago Monteiro v Lukas Rosol [154] | 6-3,6-7,6-3 | |
| ATP Houston | 04/13 19:05 | 26 | [81] Thiago Monteiro v Ernesto Escobedo [91] | 6-4,4-6,4-6 | |
| ATP Houston | 04/12 17:50 | 25 | [42] Donald Young v Thiago Monteiro [81] | 3-6,4-6 | |
| Davis Cup | 04/09 16:40 | 28 | [211] Gonzalo Escobar v Thiago Monteiro [81] | 7-6,4-6,3-6 | |
| Davis Cup | 04/09 16:30 | 28 | Emilio Gomez v Thiago Monteiro | Cancelled | |
| Davis Cup | 04/07 19:30 | 28 | [232] Roberto Quiroz v Thiago Monteiro [81] | 7-6,6-7,3-6,6-7 | |
| ATP Miami | 03/22 20:20 | 23 | [38] Viktor Troicki v Thiago Monteiro [82] | 5-7,6-3,6-1 | |
| ATP Indian Wells | 03/10 01:40 | 23 | [66] Martin Klizan v Thiago Monteiro [77] | 7-6,6-3 | |
| ATP Sao Paulo | 02/28 21:30 | 25 | Carlos Berlocq v Thiago Monteiro | 4-6,6-4,6-4 | |
| ATP Rio De Janeiro | 02/24 23:55 | 27 | Thiago Monteiro v Casper Ruud | 2-6,6-7 | |
| ATP Rio De Janeiro | 02/24 01:15 | 26 | Thomaz Bellucci v Thiago Monteiro | 6-7,6-3,3-6 | |
| ATP Rio De Janeiro | 02/21 19:30 | 25 | Thiago Monteiro v Gastao Elias | 2-6,7-6,6-4 | |
| ATP Buenos Aires | 02/18 00:00 | 27 | Carlos Berlocq v Thiago Monteiro | 3-6,6-2,6-3 | |
| ATP Buenos Aires | 02/17 00:00 | 26 | Thiago Monteiro v Tommy Robredo | 6-3,6-4 | |
| ATP Buenos Aires | 02/15 16:45 | 25 | Victor Estrella Burgos v Thiago Monteiro | 2-6,1-6 | |
| ATP Quito | 02/06 23:30 | 25 | Thiago Monteiro v Giovanni Lapentti | 3-6,2-6 | |
| Australian Open 2017 | 01/16 06:40 | 23 | Jo-Wilfried Tsonga v Thiago Monteiro | 6-1,6-3,6-7,6-2 | |
| ATP Sydney | 01/09 02:00 | 25 | Daniel Evans v Thiago Monteiro | 6-3,4-6,6-3 | |
| ATP Sydney Qual | 01/08 00:00 | 46 | Thiago Monteiro v Santiago Giraldo | 6-3,6-1 | |
| ATP Sydney Qual | 01/06 23:00 | 45 | Thiago Monteiro v Thomas Fabbiano | 5-7,7-6,6-3 | |
| ATP Chennai | 01/02 11:35 | 25 | Thiago Monteiro v Daniil Medvedev | 3-6,3-6 | |
| Challenger Santiago 2 | 10/21 20:30 | 28 | Rogerio Dutra Silva v Thiago Monteiro | Retired | |
| Challenger Santiago 2 | 10/20 19:50 | 27 | Axel Michon v Thiago Monteiro | 5-7,4-6 | |
| Challenger Santiago 2 | 10/19 17:00 | 26 | Juan Pablo Paz v Thiago Monteiro | 4-6,2-6 | |
| Challenger Santiago 2 | 10/18 18:40 | 25 | Juan Ignacio Londero v Thiago Monteiro | 5-7,6-7 |
Wikipedia - Thiago Monteiro (tennis)
Thiago Moura Monteiro (Brazilian Portuguese: [tʃiˈaɡu mõˈtejɾu]; born 31 May 1994) is a Brazilian professional tennis player.
Monteiro has a career-high ATP singles ranking of world No. 61 achieved on 17 October 2022. He also has a career-high ATP doubles ranking of No. 144, achieved on 31 January 2022. He is currently the No. 2 Brazilian tennis player.
On the ITF Junior Circuit, Monteiro peaked in the rankings at No. 2 on 2 February 2012, with his biggest junior singles title being the Grade A, Copa Gerdau in Porto Alegre, Brazil, in 2011.
In his first ATP match, as a wildcard ranked world No. 338 in the ATP 500 Rio de Janeiro in February 2016, Monteiro upset No. 9 Jo-Wilfried Tsonga in the first round. In the second round, Monteiro lost to eventual champion Pablo Cuevas. In his next tournament, the ATP 250 São Paulo, Monteiro won two matches (against former World No. 9 Nicolás Almagro, and Daniel Muñoz de la Nava), losing again to eventual champion Cuevas in the quarterfinals.
On May 8, 2016, Monteiro won his first ATP Challenger title in Aix-en-Provence, France. He defeated Carlos Berlocq in the final.