| United Cup | 01/01 00:00 | - | [71] Thiago Monteiro v Casper Ruud [3] | 3-6,2-6 | |
| United Cup | 12/30 00:00 | - | [16] Matteo Berrettini v Thiago Monteiro [71] | 6-4,7-6 | |
| ATP Paris | 10/30 10:00 | 19 | [69] Quentin Halys v Thiago Monteiro [66] | 6-3,7-5 | |
| ATP Paris | 10/29 09:55 | 46 | [118] Hugo Grenier v Thiago Monteiro [66] | 6-4,2-6,6-7 | |
| ATP Vienna | 10/25 12:00 | 25 | [32] Grigor Dimitrov v Thiago Monteiro [66] | 6-3,6-4 | |
| ATP Vienna | 10/23 11:00 | 19 | [54] Oscar Otte v Thiago Monteiro [61] | 6-7,6-4,4-6 | |
| ATP Vienna | 10/22 10:25 | 14 | [81] Dusan Lajovic v Thiago Monteiro [61] | 4-6,2-6 | |
| ATP Stockholm | 10/17 16:00 | 25 | [27] Holger N Rune v Thiago Monteiro [61] | 7-5,6-2 | |
| ATP Gijon | 10/12 15:50 | 26 | [65] Thiago Monteiro v Pablo Carreno-Busta [15] | 4-6,6-7 | |
| ATP Gijon | 10/10 11:00 | 25 | [67] Benjamin Bonzi v Thiago Monteiro [65] | 4-6,5-7 | |
| ATP Tel Aviv | 09/28 09:00 | 25 | [62] Thiago Monteiro v Pablo Andujar [115] | 6-7,1-6 | |
| Challenger Genova | 09/25 15:30 | 29 | [164] Andrea Pellegrino v Thiago Monteiro [66] | 1-6,6-7 | |
| Challenger Genova | 09/25 09:00 | 28 | [309] Adrian Andreev v Thiago Monteiro [66] | 2-6,4-6 | |
| Challenger Genova | 09/23 12:25 | 27 | [197] Sebastian Ofner v Thiago Monteiro [66] | 7-6,4-6,6-7 | |
| Challenger Genova | 09/21 17:30 | 26 | [163] Dimitar Kuzmanov v Thiago Monteiro [66] | 6-7,3-6 | |
| Challenger Genova | 09/20 09:25 | 25 | [193] Stefano Travaglia v Thiago Monteiro [66] | 6-4,2-6,4-6 | |
| Davis Cup | 09/17 15:45 | 4 | [56] Joao Sousa v Thiago Monteiro [65] | 6-3,6-1 | |
| Davis Cup | 09/16 15:30 | 2 | [93] Nuno Borges v Thiago Monteiro [65] | 6-7,6-4,7-6 | |
| US Open | 08/31 23:10 | 24 | [31] Karen Khachanov v Thiago Monteiro [67] | 6-3,6-3,5-7,6-4 | |
| US Open | 08/29 19:50 | 23 | [40] Alex Molcan v Thiago Monteiro [67] | 4-6,6-4,4-6,1-6 | |
| ATP Winston-Salem | 08/25 00:20 | 26 | [67] Thiago Monteiro v Benjamin Bonzi [50] | 5-7,2-6 | |
| ATP Winston-Salem | 08/23 01:15 | 25 | [35] Nikoloz Basilashvili v Thiago Monteiro [67] | 4-6,1-6 | |
| ATP Winston-Salem | 08/21 22:00 | 24 | [95] Denis Kudla v Thiago Monteiro [65] | 6-7,5-7 | |
| ATP Cincinnati | 08/14 17:45 | 19 | [102] Henri Laaksonen v Thiago Monteiro [64] | 4-6,6-3,6-4 | |
| ATP Cincinnati | 08/13 18:50 | 14 | [200] Emilio Nava v Thiago Monteiro [64] | 3-6,0-6 | |
| ATP Kitzbuhel | 07/25 10:45 | 25 | [68] Jiri Lehecka v Thiago Monteiro [67] | 7-6,6-4 | |
| ATP Gstaad | 07/19 14:35 | 25 | [118] Nicolas Jarry v Thiago Monteiro [72] | 6-7,7-6,7-6 | |
| Challenger Salzburg | 07/10 10:00 | 29 | [124] Norbert Gombos v Thiago Monteiro [89] | 3-6,6-7 | |
| Challenger Salzburg | 07/09 12:00 | 28 | [102] Facundo Bagnis v Thiago Monteiro [89] | 6-3,5-7,3-6 | |
| Challenger Salzburg | 07/08 15:05 | 27 | [89] Thiago Monteiro v Dusan Lajovic [64] | 6-4,6-7,6-4 |
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.